$1 trillion-plus in U.S. defense spending has not fixed a procurement system that remains slow and over budget, leaving the military behind China in hypersonics, missile defense and autonomous systems.
Contractor consolidation since the 1990s shrank 51 major firms to the Big Five, reducing competition and commercial spillovers; today more than 60% of major Pentagon programs by value come from firms with little or no commercial business.
$24.4 billion for Golden Dome and $3.3 billion for Sentinel in fiscal 2026 illustrate the problem, with the Sentinel ICBM program now estimated at at least $140.9 billion—81% above its original cost projection.
Congress is cast as the main lever for change through tougher oversight, possible antitrust action, open-systems enforcement, multiyear procurement and faster adoption of nontraditional suppliers via programs such as the Defense Innovation Unit.
Continuing resolutions and failed Pentagon audits still impede reform, while weak communication between lawmakers and defense leaders leaves budget choices misaligned with operational needs.
Can AI solve the Pentagon's trillion-dollar accountability crisis before its 2028 deadline?
Can the U.S. military win a future war while spending billions on weapons designed for the last one?
With Silicon Valley entering defense, can tech startups truly out-innovate the established 'Big Five' military contractors?
U.S. Defense Spending Surpasses $1 Trillion: Innovation, Industry Consolidation, and the China Challenge in FY2026
Overview
In 2026, U.S. defense spending soared past $1 trillion, driven by President Donald Trump’s 'One, Big Beautiful Bill Act,' which allocated major new funding for innovation and defense capabilities. This surge reflects a strong strategic commitment to national defense, but also introduces significant risks due to the scale of investment. A large share of the budget is focused on modernizing the nuclear enterprise, reinforcing its role as a cornerstone of U.S. security. These developments highlight both the ambition and the challenges of sustaining military superiority in a rapidly changing global landscape.