The United States has urged European allies to assume primary responsibility for NATO’s conventional defense by 2027, according to multiple diplomatic sources. During a recent meeting in Washington, Pentagon officials delivered what participants described as a firm message, warning that failure to meet the target could lead to reduced U.S. participation in certain NATO coordination structures. European diplomats reportedly viewed the timeline as unrealistic, citing limited progress since Russia’s full-scale invasion of Ukraine.

Officials said the Pentagon has not clarified how it will measure Europe’s progress, and uncertainty remains over whether the 2027 deadline reflects the Trump administration’s formal policy or internal Pentagon sentiment. European nations argue that replacing U.S. intelligence and surveillance capabilities within three years is impractical, given production backlogs and long delivery times for military equipment. NATO’s spokesperson acknowledged ongoing European efforts to strengthen defense but confirmed no official alliance deadline. The debate underscores Washington’s long-standing pressure on Europe to increase defense spending, a theme revived in the 2024 U.S. election context.

Analysts warn that diverging expectations could strain transatlantic unity, especially as NATO faces persistent security challenges from Russia and global instability.