Introduction: The Changing Architecture of Global Dealmaking
A cross border merger was once judged almost entirely on commercial arithmetic, valuation, synergies, financing structure, competition clearance and tax efficiency. That calculus has not disappeared but it no longer decides the outcome alone. Global dealmaking has acquired a second axis of evaluation that now runs alongside commercial value rather than beneath it. Deal value is assessed together with regulatory risk, geopolitical exposure and national security risk and a transaction that scores well on the first and poorly on the remaining three rarely survives in its original form. A deal that clears every commercial hurdle can still be unwound or conditioned into commercial pointlessness because the target sits in a sector a government has decided it cannot afford to lose control over. This article examines how that shift occurred why the United States, the European Union, the United Kingdom and India have each built distinct architectures to manage it and what the divergence between those architectures reveals about a policy problem none of them has fully solved and in this article the author has explained everything about The New Architecture of Global Dealmaking: National Security in Cross Border Mergers – All you need to know.
Understanding Cross Border Mergers and Global Dealmaking
A cross border merger involves an acquirer and a target incorporated in different jurisdictions, which distinguishes it from domestic mergers and acquisitions mainly in the number of legal systems a single transaction must satisfy at once. Companies pursue such deals to enter new markets, secure intellectual property they cannot build organically and acquire assets that would take years to develop internally. What has changed is not this commercial logic but the regulatory shadow it now operates under. A transaction that once required corporate law and competition clearance alone may now touch foreign investment law, data protection and increasingly, national security review. A cross border transaction is no longer merely a private arrangement between two companies. In sensitive sectors it is a matter of public policy and the two characterisations increasingly compete for priority within the same deal.
From Commercial Transactions to Strategic Transactions
The traditional model asked whether a deal created value, whether financing was available and whether regulators would clear it on competition grounds. Governments now ask a different set of questions first. Who ultimately controls the acquiring entity. What technology or data the target holds. Whether the target sits inside critical infrastructure. Whether foreign control could create dependence that would not exist under domestic ownership. In sensitive sectors these questions are the deal and a transaction that fails this threshold assessment rarely survives commercial due diligence however attractive the numbers. This is the first concrete expression of the wider shift. Strategic value, the significance of an asset to national capability rather than to the acquirer’s balance sheet has become a variable deal teams must price before anything else.
Why National Security Has Become Central to Cross Border Mergers
Three forces explain this shift and each has produced a different national response. The first is geopolitics. Strategic competition particularly between the United States and China has turned semiconductors and supply chain dependence into instruments of state policy so that a commercially attractive transaction can still be politically unacceptable regardless of price. The second is technology. Acquiring a company increasingly means acquiring its access to artificial intelligence capability and sensitive data, assets whose strategic value can exceed their balance sheet value by a margin traditional valuation was never built to capture. The third is infrastructure. Ports, energy grids and telecommunications networks form the backbone a state depends on to function and foreign control over them raises questions that have nothing to do with efficiency and everything to do with who can be trusted during a crisis. None of these forces shows any sign of receding.
National Security Review in Cross Border Mergers
National security review is conceptually distinct from ordinary regulatory or competition approval. Competition law asks whether a transaction harms consumers or markets. National security review asks whether the transaction changes who controls an asset the state considers indispensable, regardless of what it does to prices or market structure. A deal can clear every competition threshold and still be blocked and a deal with negligible market impact can attract intense scrutiny purely because of what the target does or who the acquirer answers to. Broadcom’s proposed acquisition of Qualcomm illustrates the point. The deal was blocked by presidential order in 2018 not for any antitrust reason but because CFIUS judged that a foreign controlled Broadcom might curtail the investment underpinning American leadership in fifth generation wireless research, a rationale with almost nothing to do with the transaction’s commercial logic. That case established well before the current wave of reform that national security review operates on a separate axis from commercial merit and every regime discussed below has since built on that premise.
Major Jurisdictional Approaches to National Security in Cross Border Mergers
The United States operates the most mature regime through the Committee on Foreign Investment in the United States chaired by the Treasury and expanded by the Foreign Investment Risk Review Modernization Act of 2018. CFIUS can investigate and recommend a presidential order blocking a transaction outright, a power exercised against Chinese acquirers as recently as 2025 and 2026. This solves a narrow problem well stopping adversary linked deals in sensitive sectors but at the cost of unpredictability since the discretion that lets CFIUS stop a dangerous deal also lets political considerations shape outcomes where the rationale is thinner. The direction of travel is not purely restrictive. The America First Investment Policy of February 2025 promises faster review for allied capital and the Known Investor Program piloted through 2026 aims to reduce friction for repeat, low risk investors even as scrutiny of adversary linked capital tightens. The American approach is bifurcating rather than hardening betting it can distinguish welcome capital from unwelcome capital reliably enough at the border.
The European Union has taken longer to build comparable teeth and the reason lies in institutional design rather than any lack of concern. Its original framework, Regulation 2019/452 functioned mainly as an information sharing mechanism leaving the decision to block a transaction with individual member states several of which had no domestic screening mechanism at all meaning a sensitive asset could in practice be acquired through whichever member state lacked a review process. The council closed that gap in June 2026 adopting a new Foreign Investment Screening Regulation obliging every member state to operate a screening mechanism setting a mandatory minimum scope covering critical technologies, energy and digital infrastructure and extending screening to European Union entities ultimately controlled from outside the bloc. This is the Union choosing harmonisation over the fragmented sovereignty it had preferred though an eighteen month transition means the practical effect will only be felt from 2028.
The United Kingdom’s National Security and Investment Act 2021 sits between these two models. It imposes mandatory, suspensory notification across seventeen sensitive sectors soon nineteen following a March 2026 reform adding water infrastructure and splitting out semiconductors and critical minerals as standalone categories and notifications rose forty six percent between 2023 and 2026 evidence the regime is being used more and not less even as the government frames the reforms as reducing burden elsewhere. The Nexperia acquisition of Newport Wafer Fab shows how this regime bites. The deal closed in 2021 without triggering the voluntary regime then in force, was reviewed retrospectively once the mandatory Act came into effect and was ordered unwound in 2022 with Nexperia required to divest its stale because Chinese ownership of the United Kingdom’s largest chip fabrication facility was judged a technology security risk. That a completed transaction could be reopened years later is exactly the kind of retrospective exposure that makes national security risk different in kind from ordinary regulatory risk.
India presents the most interesting recent development, one that cuts against the general trend toward tightening. Press note 3 of 2020 required government approval for any investment from a country sharing a land border with India in practice China and applied even where the beneficial owner held a single indirect share, a threshold low enough to capture portfolio investment with no realistic connection to control. In March 2026 the Cabinet approved Press Note 2 which for the first time defines beneficial ownership by reference to a ten percent threshold and lets non controlling investment below that line proceed through the automatic route. This is not India abandoning screening. Approval remains mandatory above the threshold and Pakistan remains separately restricted in defence, space and atomic energy regardless of ownership analysis. India has replaced a blunt bar with a calibrated one and that this took six years suggests even a cautious government eventually concludes indiscriminate screening imposes real economic cost without a matching security benefit.
Read together, these four regimes reveal something the jurisdiction by jurisdiction literature usually misses. The United States is liberalising for allies while hardening against adversaries. The European Union is centralising after years of fragmentation. The United Kingdom is broadening its sectoral net while reserving retrospective unwinding for cases like Newport Wafer Fab. India is narrowing an overbroad rule toward precision. None is simply becoming more restrictive or more open. Each is recalibrating the line and the direction depends on how confident that state currently feels in distinguishing genuine risk from ordinary foreign capital.
National Security and Foreign Direct Investment
Foreign investment sits at the intersection of two forces pulling in opposite directions. Investment tends toward growth and technology transfer. Foreign control, particularly where it is opaque tends toward strategic dependency and in the worst case security risk which is why governments increasingly look past the immediately acquirer to the ultimate beneficial owner. NVIDIA’s abandoned acquisition of Arm shows the same dynamic through a competitive rather than adversarial mechanism. The deal collapsed in 2022 not because any single authority blocked it but because regulators across three jurisdictions raised concerns that one company controlling architecture licensed to nearly every major chip designer would concentrate dependency unacceptably, regardless of NVIDIA’s nationality. Structural control over a chokepoint technology can itself be the risk, why is why control, not nationality has become the analytical centre of gravity across every regime.
National Security Concerns Across Strategic Sectors
Certain sectors attract scrutiny more consistently and the reasons differ in ways worth examining rather than merely listing. Defence and aerospace raise the least controversial concern since the link between ownership and risk is direct. Semiconductors occupy a harder category since the concern is chokepoint control rather than weapons which is what made both the Broadcom Qualcomm and Newport Wafer Fab interventions possible despite neither company manufacturing arms. Telecommunications raises a different concern, surveillance and communications integrity where the risk lies in what access ownership confers over data flowing through the network. Energy and critical minerals implicate physical dependency, the possibility a state cannot function during a crisis because a foreign owner controls an input it cannot quickly replace. Artificial intelligence and large datasets are the hardest category because the harm is informational rather than military or physical revealing patterns of behavior and vulnerability that merger control built around market share was never designed to assess.
The Role of Due Diligence in National Security Reviews
Traditional due diligence is backward looking, verifying financial statements, contracts and compliance history. National security due diligence is forward looking asking not what a target has done but what a future owner could do with what it controls, a reframing deal teams trained on commercial diligence routinely underestimate. Ownership must be traced through every intermediate entity to the ultimate beneficial owner, the analysis India’s revised Press Note 2 now formalises through its ten percent threshold. Government connections must be assessed even absent formal state ownership, since influence can run through financing or board appointments without appearing on a capitalisation table. The point most frequently missed is timing. This analysis needs to begin before a target is even shortlisted because a fatal objection discovered after capital and reputation are committed is far more costly than one discovered before a term sheet is drafted and unlike most commercial risks it cannot usually be negotiated away once regulators have taken a firm position.
How National Security Can Affect the Deal Process
Before signing, parties increasingly hold informal pre filing discussions with regulators, effectively pricing regulatory risk before pricing the target. During negotiation this becomes concrete contractual terms, regulatory conditions precedent, long stop dates calibrated to realistic review timelines and reverse termination fees allocating the cost of failure. After signing, the formal filing process may generate information requests and mitigation negotiations before approval is granted. After closing, compliance with mitigation obligations continues and as Newport Wafer Fab demonstrates, the review never fully ends for the acquirer since a regime with retrospective powers can revisit a transaction years after everyone considered it finished.
Regulatory Intervention and Deal Risk
National security authorities may approve a transaction outright, approve it subject to conditions, require mitigation, prohibit it or as in the United Kingdom unwind one that has already closed. These powers are not identical across countries and that variation is itself a source of risk forcing multinational acquirers to design deal structures around the strictest applicable regime rather than the most permissive one. Mitigation typically includes restrictions on data access, governance conditions synch as an independent security officer and divestment of specific assets. The TikTok divestiture finalised in January 2026 through the TikTok USDS joint venture led by Oracle, Silver Lake and MGX with ByteDance’s residual stake reduced to under twenty percent shows mitigation at its most extensive. The structure did not merely restrict ByteDance’s access to American user data. It required retraining the recommendation algorithm itself on domestic data under new ownership treating the algorithm as a security asset separable from the entity that built it.
National Security Versus Free Flow of Foreign Investment
The case for robust screening rests on protecting strategic assets from acquisition by entities that may not act in the host state’s interest, and Newport Wafer Fab and Broadcom Qualcomm show the concern is not hypothetical. The case against exclusive screening is equally serious and harder to make persuasively in public since no politician loses votes by appearing tough on foreign capital while the diffuse cost of deterred investment rarely attached to any single decision maker. Regulatory uncertainty discourages legitimate investment, extends timelines and creates room for decisions that appear arbitrary to investors who cannot distinguish a genuine objection from a political one dressed in security language. The genuine difficulty is calibrating scrutiny so it catches the narrow category of transactions that threaten security without deterring the much larger category that does not and as the comparative survey above shows every jurisdiction here is trading one failure mode for another rather than escaping the tension.
The Risk of Protectionism in the Name of National Security
This is where the analysis must become critical rather than descriptive because national security review is by design difficult to challenge and that design feature is what makes it attractive to governments pursuing goals that have little to do with security in the narrow sense. Courts in most jurisdictions defer heavily to executive judgement here, a deference rooted in the sound principle that judges lack the intelligence access to second guess a security assessment but a principle that also means review criteria are often broad enough to justify almost any outcome a government wishes to reach. That combination creates an obvious temptation to dress economic nationalism in the vocabulary of security protecting a domestic champion under a rationale functionally unreviewable because no court will meaningfully test it. This is not confined to authoritarian states. Industrial policy and national security policy increasingly overlap by design in every major economy, since strategic autonomy a state’s desire to control the technologies it considers essential to its own resilience is simultaneously a security objective and an industrial policy objective and the same screening mechanism can advance both without any government needing to admit which one is driving a given decision. Selective protectionism compounds the problem since a regime that screens rigorously against one country’s capital while waving through comparable capital from an ally reveals that nationality, not the sensitivity of the underlying asset, is doing much of the analytical work.
The honest position this article defends is that some proportion of intervention across every jurisdiction studied is genuine security concern and some proportion is protectionism wearing a security label and the two are difficult to disentangle from outside the room where the decision is made. The more useful test is not the language a government uses since every government frames its decisions as security driven regardless of motive but whether the underlying concern would exist regardless of who the investor happened to be.A rule that turns on the sensitivity of the target, applied consistently across all acquirers more likely reflects genuine concern. A rule that turns on the nationality of the investor holding target sensitivity constant looks more like protectionism whatever label it carries. India’s own recalibration of Press note 3 passes this test in reverse. A rule capturing a single indirect share regardless of actual control was always difficult to justify on security grounds alone and its replacement with a control based threshold suggests that even a government with every incentive to keep a broad discretionary power eventually found the economic cost of an indefensible rule harder to sustain than the political cost of narrowing it. Because judicial oversight rarely reaches this far, that self correction tends to come from the executive reassessing its own cost benefit calculation rather than from any external check, a weaker safeguard than most defenders of these regimes admit.
Impact on Global Dealmakers
Buyers must evaluate regulatory risk, geopolitical exposure and mitigation cost as corte transaction variables rather than afterthoughts bolted on after commercial terms are agreed. Sellers face a parallel calculation since buyer identity may determine whether a deal closes at all and auction processes increasingly screen bidders for regulatory viability before price is discussed, occasionally excluding the highest bidder because closing is improbable regardless of price offered. For merger and acquisition lawyers this is the most significant expansion if required expertise tge profession has seen in a generation. Competence in corporate and competition law is no longer enough. Deal counsel now needs working fluency in foreign investment regulation sanctions and geopolitical risk and firms without this capability are increasingly bringing in specialist counsel as a matter of course.
The New Architecture of Global Dealmaking
Global dealmaking has moved from a model of commercial evaluation to one in which commercial, regulatory geopolitical and national security considerations operate simultaneously rather than sequentially and the case studies discussed throughout this article, Broadcom Qualcomm, NVIDIA Arm, Newport Wafer Fab and the TikTok divestiture, each illustrate a different facet of that same underlying shift. This can be expressed as a working framework.
Deal Value plus Strategic Value plus Regulatory Risk plus Geopolitical Risk plus National Security Risk equals Transaction Viability.
The value of this framework is not mathematical precision since none of these variables reduces to a single number but conceptual discipline. It forces deal teams to treat strategic value and security risk as inputs to viability from the outset rather than as constraints discovered late in the process. A transaction that scores well on deal value alone is not under this framework necessarily viable. It is only half evaluated and each cashew examined is in effect a demonstration of what happens when a deal team treats the equation as complete before every term has been assessed.
Future of National Security in Cross Border Mergers
Regulatory scrutiny is likely to keep intensifying in absolute terms even as individual regimes selectively liberalise for trusted counterparties extending the bifurcated pattern already visible in the American approach. Artificial intelligence, semiconductors and biotechnology will remain the sectors most likely to attract new review categories and the gap identified above around data heavy transactions is likely where the next generation of screening rules gets written since frameworks built around physical infrastructure translate poorly to informational assets. Companies are increasingly expected to run geopolitical due diligence as a distinct workstream from the earliest stage of target selection rather than bolted onto later negotiation, with deal teams becoming genuinely multidisciplinary rather than treating specialists as sequential inputs consulted only once a problem has emerged. Whether this produces a more predictable global system or simply a more expensive one to navigate remains open and the answer will likely differ by jurisdiction in the uneven way this article has described.
Recommendations for Businesses Undertaking Cross Border Mergers
Businesses should identify national security exposure at the earliest possible stage, before a target is even shortlisted conducting jurisdiction specific regulatory analysis for every relevant filing regime and examining beneficial ownership with the rigor a regulator would apply. Regulatory timelines should be built into transaction schedules from the term sheet stage, contractual protections should allocate the cost of regulatory failure realistically between the parties and mitigation strategies should be prepared before they become necessary rather than improvised once a regulator demands them. Post closing compliance monitoring should be treated as a continuing obligation rather than a box ticked at signing, a lesson Newport Wafer Fab makes impossible to ignore.
Conclusion: Reimagining Global Dealmaking
Cross border mergers are no longer evaluated solely through traditional commercial considerations. National security has become a decisive component of transaction viability and the comparative evidence from the United States, the European Union, the United Kingdom and India shows this is not a uniform trend toward closure but a genuine recalibration with each jurisdiction drawing the line between openness and control in its own way and revising it as experience demands. Broadcom Qualcomm, NVIDIA Arm, Newport Wafer Fab and the TikTok divestiture are not isolated controversies. They are evidence of a single transformation, visible across four legal systems and four different rationales, in how the world now decides who is allowed to own what. Technology and critical infrastructure have raised the stakes of getting this line wrong in either direction, toward excessive openness or toward protectionism dressed as security. For businesses, investors and the lawyers who advise them, the practical conclusion is straightforward even where the underlying policy questions are not. National security analysis can no longer sit at the periphery of deal strategy. It has to sit at the centre from the first conversation about a target through to the final day of post closing compliance because as every case shows, that compliance obligation may not have an end date.
Frequently Asked Questions
1: Can a cross-border merger be blocked even if it does not raise competition concerns?
Answer: Yes. Competition review and national security review operate independently. A transaction may pose no threat to market competition and still be restricted, conditioned, or prohibited if regulators believe it could affect critical technologies, sensitive data, strategic infrastructure, or national security interests. The Broadcom–Qualcomm transaction is a prominent example discussed in this article.
2: Does stricter national security screening mean countries are becoming less open to foreign investment?
Answer: Not necessarily. Many jurisdictions are not simply becoming more restrictive; they are becoming more selective. The United States, European Union, United Kingdom, and India have all recalibrated their screening frameworks in different ways. The objective is increasingly to distinguish genuine security risks from ordinary foreign investment rather than to discourage foreign capital altogether.
About the Author
Prisha Chaudhry is pursuing a B.B.A. LL.B. (Hons.) at Jindal Global Law School, Sonipat. She is a keen legal researcher and writer with a strong interest in corporate law, mergers and acquisitions, international business law, competition law and regulatory governance. Her work focuses on analyzing contemporary legal and commercial developments through a practical and research driven lens with particular emphasis on the intersection of business strategy, regulation and emerging global challenges.
References
- Foreign Investment Risk Review Modernization Act of 2018, Pub. L. No. 115 232, 132 Stat. 2173.
- National Security and Investment Act 2021 (UK).
- Regulation (EU) 2019/452 of the European Parliament and of the Council of 19 March 2019 establishing a framework for the screening of foreign direct investments into the Union.
- Regulation (EU) 2026/1386 of the European Parliament and of the Council on the screening of foreign investments in the Union, adopted 8 June 2026.
- Department for Promotion of Industry and Internal Trade, Government of India, Press Note 3 (2020 Series), 17 April 2020.
- Department for Promotion of Industry and Internal Trade, Government of India, Press Note 2 (2026 Series), March 2026.
- Foreign Exchange Management (Non Debt Instruments) Rules, 2019.
- United States Department of the Treasury, CFIUS Annual Report to Congress, 2025.