The latest version authorizes a record USD 901 billion in military expenditures for the fiscal year 2026.
It includes provisions designed to make it harder to significantly reduce US forces stationed in Europe, Polish defence website defence24.pl reported.
Under the law, defence funds cannot be used to cut the number of US troops in Europe below 76,000, remove major military equipment or relinquish the role of an American Supreme Allied Commander Europe (SACEUR)—unless the Pentagon can provide a detailed impact report certifying that such decisions were made in consultation with allies and are consistent with US national security interests.
The measure establishes guardrails that effectively constrain major reductions in US force posture in Europe, defence24.pl said, citing a recent assessment by analysts Torrey Taussig and Karlis Kuskevics of the Washington-based Atlantic Council think tank.
Millions for US military facilities in Poland
The law also includes significant investment plans for US military facilities in Poland, defence24.pl reported, saying that more than USD 500 million could be allocated for the modernization and expansion of eight sites hosting US Army personnel in the country.
Under the document, nearly USD 300 million will be earmarked for facilities in Powidz, western Poland, while about USD 111 million is planned for aerial port upgrades in the southwestern city of Wrocław, according to defence24.pl.
An additional USD 18 million is set aside for an air base in Łask near the central city of Łódź.
These investment plans underscore Washington’s continued commitment to NATO's eastern flank amid security concerns triggered by Russia's war in Ukraine, analysts say.