President Donald Trump’s FY2027 war budget calls for a sweeping military buildup. In a press release on April 21, the Department of War said the plan totals roughly $1.5 trillion and would expand U.S. military power through major spending on ships, drones, missile defense, space, military pay, and force growth.
The administration’s summary focuses on the most visible parts of the package. Those include:
- $65.8 billion for shipbuilding
- more than $74 billion for drone and counter-drone programs
- nearly $18 billion for Golden Dome
- more than $75 billion for space capabilities
- growth of 44,000 service members
But the budget books show a broader story. They show the buildup also runs through stockpiles, logistics, facilities, medical accounts, and day-to-day readiness.
O&M Spending Takes Up A Major Share
The operations and maintenance books put FY2027 operation and maintenance, or O&M, spending at about $430.7 billion. That includes about $382.6 billion in discretionary funding and about $48.2 billion in mandatory funding.
Some of the largest FY2027 O&M totals include:
- Army: about $73.6 billion
- Navy: about $87.2 billion
- Air Force: about $79.8 billion
- Defense-Wide: about $126.8 billion
- Space Force: about $9.68 billion
Those accounts cover the cost of operating the force each day. They include fuel, base operations, training, repairs, logistics, cyber support, and other readiness needs.
Bases And Facilities Get A Sharp Lift
Some of the clearest jumps appear in facilities accounts.
In the Army O&M request, Facilities Sustainment, Restoration & Modernization rises to about $14.48 billion total, including more than $9 billion in mandatory funding.
Other notable totals include:
- Navy base support: about $17.29 billion
- Air Force facilities sustainment, restoration, and modernization: about $11.50 billion
The Space Force also posts a sharp increase. Its O&M request rises from about $5.72 billion in the FY2026 total to about $9.68 billion in FY2027.
Stockpiles And Defense-Wide Support Also Rise
The revolving funds file shows the National Defense Stockpile Transaction Fund climbing to about $18.01 billion in FY2027, up from about $2.01 billion in the FY2026 total.
The procurement books show other large defense-wide totals in FY2027:
- Defense Production Act Purchases: about $30.43 billion
- Defense Strategic Capital Credit Program: about $20.22 billion
- Procurement, Defense-Wide: about $49.74 billion
Those accounts suggest the budget is not only buying weapons. It also supports stockpiles, supply chains, and broader defense capacity.
Marine Corps And Space Force Stand Out
The Marine Corps and Space Force show some of the sharpest gains in the operations books.
- Marine Corps O&M rises from about $12.17 billion in the FY2026 total to about $21.56 billion in FY2027
- Space Force O&M rises from about $5.72 billion to about $9.68 billion
The military personnel books also show direct military personnel spending rising to about $205.1 billion in FY2027.
Pacific Spending Shows How The Budget Gets Applied
The FY2027 Pacific Deterrence Initiative gives a clearer picture of how the broader budget gets translated into regional priorities.
The initiative totals about $11.72 billion in FY2027, up from about $10.06 billion in FY2026. The largest category is Exercises, Training, Experimentation, and Innovation at about $4.39 billion. The next largest is Infrastructure Improvements at about $3.01 billion.
The PDI documents also point to several specific locations and priorities:
- Guam-related missile defense and infrastructure work
- port and harbor projects in Palau and Yap
- runway and apron work at Yap Airfield and Wake Island
- more than $4.41 billion through the Department of the Navy
- more than $2.54 billion through the Office of the Secretary of War
Intelligence Funding Stays Mostly Classified
The Department also released the FY2027 top-line request for the Military Intelligence Program at $50 billion, while withholding further details for national security reasons.
Taken together, the budget books show a military buildup that goes beyond ships, aircraft, and missiles. They also direct major taxpayer funding toward the support structure needed to sustain a larger force.
