Boeing Bows Out as Well: Cracks in U.S. Defense Industrial Competitiveness Exposed by UJTS—Can Trump’s ‘Donroe Doctrine’ Provide the Answer?

Boeing withdraws after Lockheed Martin from U.S. Navy UJTS program it had considered entering with the T-7A
Post-Cold War erosion of America’s defense manufacturing base continues to undermine competitiveness
Trump administration seeks to rebuild defense industrial capacity by drawing allies into the equation

Boeing has abandoned its bid for the U.S. Navy’s Undergraduate Jet Training System (UJTS) program, which will introduce a next-generation carrier pilot training platform. The company cited the inability of its T-7A Red Hawk advanced trainer to satisfy the Navy’s requirements within the required timeframe. Analysts view the episode as a stark illustration of the vulnerabilities within the U.S. defense industry. With defense spending having contracted sharply after the Cold War, weaknesses have emerged across competitive dynamics and procurement systems, raising concerns that the sector’s overall industrial competitiveness is being undermined.

Fading Momentum in the UJTS Competition

According to U.S. defense publication Breaking Defense on June 13, Boeing recently informed the U.S. Navy that it would not submit a final bid under the current UJTS Request for Proposals (RFP). UJTS is intended to replace the T-45 Goshawk trainer, which entered service in 1991. Following the issuance of the first Request for Information (RFI) in October 2021 and several subsequent delays, the Navy finally released the RFP to industry participants at the end of March. Four competitors had initially declared their intention to participate: Lockheed Martin and Korea Aerospace Industries with the TF-50N; Boeing with a navalized version of the T-7A; Textron subsidiary Beechcraft and Italy’s Leonardo with the M-346N; and Sierra Nevada Corporation (SNC) with the Freedom.

When issuing the RFP, the U.S. Navy stated that the new training aircraft would not be required to land directly on aircraft carriers. The requirement represented a significant relaxation compared with the T-45, which was designed around actual carrier operations. Even during Field Carrier Landing Practice (FCLP), where pilots repeatedly rehearse carrier landings on land-based runways, the Navy lowered standards by requiring only wave-off capability following an approach rather than actual runway touchdown. Greater emphasis was instead placed on advanced virtual simulation capabilities capable of accurately replicating carrier landing environments. The concept aims to secure training effectiveness through cutting-edge simulation technologies rather than optimizing the aircraft itself for carrier operations. The Navy also increased the program’s budget ceiling last month from an initial $1.8 billion to $2.7 billion.

Despite the more accommodating requirements, the competitive field has steadily thinned. Lockheed Martin was the first to withdraw. The company indicated that the TF-50N was not the optimal solution for the program, citing requirements such as a 60% U.S.-content threshold. Boeing’s departure has now effectively reduced the competition to a two-horse race. In an official statement, a Boeing spokesperson said, “After a thorough internal assessment, we concluded that the T-7A Red Hawk platform currently being produced for the U.S. Air Force cannot meet the operational requirements of the Navy’s UJTS program.” The T-7A recently received Low-Rate Initial Production (LRIP) approval from the U.S. Air Force and is powered by the F404 engine. Boeing explained that meeting the Navy acquisition authority’s qualification requirements for a specialized carrier-capable engine would necessitate a major engine redevelopment effort and a lengthy design cycle.

Visible Signs of Decline in the U.S. Defense Industry

Market observers argue that the situation highlights the fragile state of the U.S. defense establishment. The era in which multiple companies competed aggressively to develop new weapon systems at speed has largely disappeared. In the early 1990s, immediately following the Cold War, the United States still possessed a broad aerospace manufacturing base that included McDonnell Douglas, Rockwell, General Dynamics, Boeing, Lockheed Martin, Northrop, and Grumman. After the Cold War, however, the United States entered the so-called “peace dividend” era, sharply reducing investment in manufacturing and defense while shifting the center of gravity of its economy toward services and finance.

During this transition, the broader industrial ecosystem—including metalworking, precision components, and advanced materials—lost momentum. Simultaneously, defense budget reductions and industrial restructuring triggered waves of mergers and acquisitions among prime contractors. The result was a defense sector increasingly dominated by a small number of firms, accompanied by a noticeable erosion of in-house production capabilities. This environment has weakened the Pentagon’s ability to launch new industrial initiatives while encouraging defense contractors to adopt increasingly cautious attitudes toward development costs and program risks.

The budget execution system presents additional challenges. On paper, U.S. defense spending follows a process in which military service leadership submits force requirements to the Secretary of Defense, after which the administration requests funding from Congress. In practice, however, lobbying efforts by military branches frequently collide with the interests of lawmakers representing specific constituencies, delaying decision-making. Congress also places strict limits on the Pentagon’s ability to reallocate funding. Any budget transfer exceeding $15 million requires congressional approval. These constraints often lead directly to implementation delays. The Department of Defense’s budget allocation process requires at least two years, and continuing resolutions—which maintain prior-year spending levels when Congress fails to pass appropriations bills on time—have become commonplace. This remains a major obstacle to the launch of new defense programs.

Trump’s ‘Donroe Doctrine’ Strategy

Washington increasingly believes that weakened defense industrial capacity cannot be restored through domestic production alone and is therefore seeking solutions through deeper integration of defense markets with allied nations. The objective is to use higher allied defense spending and purchases of American weapons as a source of demand supporting the reconstruction of U.S. industry. The concept aligns closely with the so-called “Donroe Doctrine,” which has emerged as a defining element of the Trump administration’s second-term foreign policy strategy. Combining President Donald Trump’s name with the 19th-century Monroe Doctrine, the concept has evolved beyond traditional military spheres of influence into a broader economic security strategy encompassing trade, industry, and defense.

The U.S. State Department’s strategic plan for fiscal years 2026–2030 places America First diplomacy at the forefront and outlines a framework that directly links U.S. diplomatic influence to allies’ procurement decisions and industrial cooperation arrangements. The objective is to encourage allies and partners to prioritize American companies and U.S.-made solutions. Within this framework, allied defense expenditures are effectively viewed as a funding source for American reindustrialization. Washington intends to pressure allies to increase defense spending and invest more heavily in deterrence while offering expanded access to the U.S. defense industrial base in return. The strategy extends well beyond selling additional American weapons systems, encompassing joint production, shared component supply chains, and enhanced interoperability to draw allies more deeply into a U.S.-centered defense ecosystem.

The rationale for such a strategy became even more apparent during recent tensions involving Iran. Through both the Ukraine war and conflicts in the Middle East, the United States repeatedly confronted limitations in its capacity to produce critical military supplies, including ammunition, missiles, naval vessels, and aircraft components. The Trump administration is therefore attempting to absorb allied demand and capital, expand order backlogs for U.S. defense contractors, and use those commitments to stimulate capital investment and supply-chain restoration. For allies, integration into the U.S. defense network offers advantages in access to advanced weaponry, joint production opportunities, maintenance systems, and interoperability. At the same time, it could increase pressure to direct defense budgets toward the purchase of American-made systems. The arrangement thus carries both benefits and risks. Countries such as South Korea, which have developed increasingly competitive indigenous defense export industries, are likely to face particularly complex negotiations over the scope of cooperation with Washington, levels of technology transfer, roles within supply chains, and the preservation of independent defense platforms.