The annual National Defense Authorization Act (NDAA), one the few remaining rituals of cross-party cooperation in Congress even as divisions sharpen elsewhere in Washington, sets out the country's national security and foreign policy priority areas for the coming year, according to lawmakers.

White House spokesperson Anna Kelly said Trump signed into law a measure which raises pay for US troops, codifies the country's "PEACE THROUGH STRENGTH agenda," and "funds the Golden Dome" air and missile defense system backed by Trump.

The NDAA, at some $900 billion, also "removes woke priorities" like diversity, equity and inclusion (DEI) programs opposed by many conservatives, and "requires promotions based on merit, not DEI," Kelly added.

The Senate easily passed the NDAA measure on Wednesday following the House's green light last week.

The success comes amid unease in European capitals over Trump's rhetoric, especially after the recent White House national security strategy painted Europe as over-regulated, culturally adrift and insufficiently committed to its own defense.

The strategy questioned the continent's strategic value and openly echoed themes championed by far-right parties, fueling fears of a widening transatlantic rift.

By contrast, the NDAA reflects lawmakers' determination to anchor the United States firmly in Europe.

The bill bars US troop levels on the continent from falling below 76,000 for more than 45 days and restricts the removal of major military equipment, effectively tying the administration's hands on any rapid drawdown.

It also boosts resources for frontline NATO states, particularly in the Baltic region, reinforcing the alliance's northeastern flank.

The measure authorizes roughly $8 billion more than the administration requested, a signal of congressional assertiveness on defense priorities.

Beyond Europe, the NDAA locks in $400 million in security assistance for Ukraine, aiming to preserve a baseline of support even as broader funding debates grind on, and places new limits on any reduction of the 28,500 US troops stationed in South Korea.

As ever, the NDAA drew fire from multiple directions -- from conservative critics of Ukraine aid to safety experts warning about aviation provisions rolling back critical air-safety requirements for military aircraft operating in Washington's restricted airspace.

But none came close to derailing a package long seen as must-pass legislation.