Legislation mirrors House version but shifts funds across vital areas such as shipbuilding, nuclear modernization, and munitions
Close Alignment, Yet Not Identical: The Path to Reconciliation
The Senate Armed Services Committee (SASC) released its version of the $150 billion defense reconciliation bill late Tuesday, which broadly mirrors the House’s recent passage but makes targeted adjustments in critical defense sectors. The bill forms part of the broader “One Big Beautiful Bill,” an effort to align various priorities from the Trump-era agenda within a comprehensive legislation package.
Senate Armed Services Committee Chairman Roger Wicker, R-Miss., expressed confidence that the two chambers are “very close” in their provisions. Speaking at a Defense Writers Group event, Wicker noted, “The House and Senate are very, very close, and the administration is supportive.” He acknowledged the most challenging disagreements are likely “in other parts of the bill,” outside the core defense title.
Major Funding Shifts: Shipbuilding Takes a Hit
The most significant divergence involves the shipbuilding budget, the largest single component in both bills. The Senate version reduces shipbuilding funding by approximately $5 billion, lowering the allocation from about $34 billion to roughly $29 billion. Notably, it eliminates nearly $4.8 billion for specific major vessels, including the San Antonio-class amphibious transport dock and America-class amphibious assault ships.
Conversely, the Senate increases funding for medium unmanned surface vessels by $300 million, pushing the total to $2.1 billion, reflecting an emphasis on unmanned maritime capabilities.
Adjustments in Munitions and Nuclear Modernization
The bill boosts munitions funding by roughly $2 billion, from $21 billion to around $23 billion. While core expenditures on long-range cruise missiles remain steady, the Senate adds $500 million to bolster U.S. domestic production of critical munitions—raising the total to $3 billion.
Nuclear modernization receives increased funding, climbing from $13 billion to $15 billion. The Sentinel intercontinental ballistic missile program benefits the most, with a $1 billion boost, bringing its total to $2.5 billion. Classified programs see a substantial rise from $22 million to $96 million, underscoring the importance placed on nuclear deterrence.
New Language to Boost B-21 Bomber Production Capacity
Both bills allocate $4.5 billion for the B-21 bomber, but the Senate’s version clarifies the funds should be used specifically to expand production capacity—including tooling, supplier base expansion, and aircraft purchase—rather than accelerating the initial buy. This language suggests a focus on increasing long-term production rates rather than short-term procurement acceleration.
Enhanced Airpower and Navy Investments
The SASC bill allocates an additional $2 billion for air superiority initiatives, totaling $9 billion, with a focus on next-generation capabilities. Navy funding sees notable increases, such as an extra $250 million for the F/A-XX fighter program, pushing the total for this effort to $750 million. Classified Navy programs also receive more than doubled funding—rising from $230 million to $480 million.
Further, the bill introduces new priorities, including $270 million for unmanned combat aircraft for the Marine Corps, $96 million for infrared search and track pods, and $50 million for conformal fuel tanks for the F-15EX.
Readiness, Indo-Pacific, and Other Notable Adjustments
Spending dedicated to readiness initiatives increases by $4 billion, reaching a total of $16 billion. The Indo-Pacific command receives an extra $1 billion, raising its budget to $12 billion. Conversely, funding for border security drops from $5 billion to $3.3 billion, reflecting shifting priorities.
Allocations Remaining Fixed
Some budget items stay consistent across both bills. For instance, $25 billion continues to support the Golden Dome project, and allocations of $9 billion for servicemember quality of life and $400 million for audits remain intact.
Outlook
As the Senate work progresses, these adjustments underscore ongoing debates about how best to allocate defense resources in a complex geopolitical landscape. The reconciliation process aims to harmonize these differences before final passage, shaping the future of U.S. military modernization efforts.
