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The securitization of the economy: Tariffs, supply chains, and the new national security doctrine

Main authors

Donald John Trump Millard Fillmore Walter E. Weyl

A significant shift in modern statecraft involves the increasing convergence of economic policy and national security strategy. Actions and events once confined to the economic sphere are now frequently interpreted through the lens of national security, where threats are perceived not only on the battlefield but also in the global marketplace ^[1]. This paradigm shift reframes international trade, investment, and technological development as domains of strategic competition, fundamentally altering the tools and objectives of foreign policy.

Central to this new dynamic is the concern over dependency on foreign nations for critical goods, particularly in the high-technology sector. The reliance on external supply chains for essential components like semiconductors is no longer seen as a mere economic vulnerability but as a direct threat to a nation's sovereignty and defense capabilities ^[2]. This anxiety is compounded by accusations of unfair trade practices, such as forced technology transfers, which are characterized as a form of strategic abuse aimed at undermining a nation's industrial future ^[3]. Consequently, control over intellectual property and the means of high-tech production has become a paramount national security interest ^[4].

This securitization of the economy prompts a critical inquiry: How has the traditional definition of national security expanded to absorb industrial policy and technological autonomy, and what are the broader consequences of deploying economic instruments, like tariffs, as weapons in this expanded conflict? The aggressive use of tariffs on essential goods demonstrates a belief that economic leverage is a legitimate, and perhaps necessary, tool for national defense in an era where industrial capacity and technological leadership are considered decisive strategic assets ^[5]. Yet, this strategy is not without its critics, who warn of profound disruptions to global economic stability ^[6].

The Industrial Base as a National Security Frontier

The contemporary understanding of national security has broadened far beyond conventional military preparedness to encompass the health and sovereignty of a nation's industrial foundations . A clear articulation of this doctrine identifies core industries—including steel, aluminum, and critically, semiconductors—as integral components of the national "defense industrial bases" . This framework posits that a country's ability to defend itself is directly contingent on its domestic capacity to produce essential materials and technologies. Therefore, ensuring the viability of these sectors is not just an economic goal but a fundamental security imperative ^[7].

Under this paradigm, threats to national security are increasingly defined in economic terms. Practices such as foreign government subsidies that lead to global overcapacity and the "dumping" of products at artificially low prices are viewed as strategic aggressions ^[8]. These actions are seen as deliberate efforts to weaken a competitor's industrial base by suppressing profits, discouraging long-term investment in infrastructure and innovation, and eroding the skilled workforce essential for advanced manufacturing ^[9]. The response, therefore, moves from trade negotiation to defensive economic action against what is labeled "unfair" competition .

This securitization is particularly acute in the technology sector. The digital domain is now a recognized battleground, where cybersecurity threats against businesses, government, and critical infrastructure represent a constant danger ^[10]. A nation's capacity to analyze and protect sensitive information is deemed an essential component of its security strategy ^[11]. Consequently, the ownership and control of key technology companies, especially in foundational areas like semiconductors, has become a matter of intense state concern. The potential acquisition of a domestic semiconductor firm by a foreign entity can be blocked on the grounds that it threatens to "impair the national security," illustrating the extent to which corporate transactions are now subject to geopolitical scrutiny .

The Tariff as a Geopolitical Instrument

In this new strategic environment, the tariff has been repurposed. Historically a tool for generating revenue or shielding nascent industries, it is now overtly deployed as an instrument of national security policy . This approach has deep historical roots, with past arguments for tariffs centering on the need to maintain domestic manufacturing for articles "necessary to arm, equip, and clothe our people," ensuring self-sufficiency in times of conflict ^[12]. The modern revival of this logic justifies tariffs as a necessary defense for industries deemed indispensable to the nation, which cannot be left vulnerable to the vagaries of global competition .

This policy is often presented as a last resort, adopted after other methods have failed to address long-standing economic grievances . Proponents argue that years of attempting to negotiate resolutions to issues like global steel overcapacity, driven by foreign subsidies, have yielded little result, compelling a more forceful approach . Tariffs are thus intended to create a shield behind which domestic industries can recover, invest, and innovate, free from the price suppression caused by what are termed unfair trade practices .

The strategic aim extends beyond protecting specific companies to a broader goal of reducing national dependency and enhancing economic self-reliance ^[13]. By diminishing reliance on global supply chains that can be disrupted by "accidents and hostilities," a nation seeks to insulate its security and economy from external pressures . This pursuit of autarky, however, is fiercely contested. Opposing views contend that such unilateral tariff measures create profound instability, undermining the security and efficiency of the very supply chains they are meant to safeguard and ultimately harming all participants in the global economy .

Institutionalizing the Economic-Security Nexus

The merging of economic and security concerns is not merely rhetorical; it is being embedded within the structures of government. The formal inclusion of top economic advisors in National Security Council meetings on international economic issues signifies an official recognition that economic policy is an inseparable component of national security strategy ^[14]. This institutional fusion ensures that decisions on trade, technology, and investment are considered through a strategic, rather than a purely commercial, lens.

This linkage, while newly prominent, is not without precedent. Previous administrations have long acknowledged the foundational role of science and technology in ensuring national security, viewing American leadership in these fields as a cornerstone of its global standing and domestic well-being ^[15]. Likewise, the imperative of maintaining a strong economy has historically been balanced against the demands of defense spending, suggesting an implicit understanding of their interdependence ^[16].

The contemporary approach, however, marks a qualitative shift from a general to a specific and confrontational posture. While past policy focused on fostering a broad ecosystem of innovation to guarantee security , the current strategy is defensively oriented around protecting specific industrial assets from clearly identified foreign threats . This represents a move away from promoting general technological progress and toward actively blocking foreign acquisitions and penalizing trade partners, signaling a more zero-sum view of global economic competition .

In recent years, the boundaries of national security have been redrawn to encompass the domains of industrial capacity, supply chain integrity, and technological supremacy. International economic relations are increasingly viewed as a theater of strategic competition, where reliance on foreign technology is a critical vulnerability and trade practices are potential weapons . This reframing has resurrected the tariff, transforming it from a simple economic lever into a tool of statecraft, wielded to defend the national industrial base and counter perceived geopolitical threats .

While the strategic goal of securing a nation's defense-critical industries and fostering greater self-reliance is a powerful motivator , this securitization of trade carries substantial risks. It challenges the foundations of the interconnected global economy, with significant potential for reciprocal action and systemic disruption . Moreover, it evokes historical warnings that protectionist policies, while offering short-term security, can lead to long-term economic instability and inefficiency ^[17]. The central challenge for policymakers is therefore to navigate the tension between the legitimate demands of national security and the complex, interdependent realities of the 21st-century global economy.