Ahead of this week's NATO summit, Europe is uncertain about its old ally, the U.S.

NPR
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A man on a bicycle passes a drawing of World leaders, including U.S. President Donald Trump, third right, in The Hague, Netherlands, Sunday, June 15, 2025.

This year's NATO summit opens Tuesday, attended by a disengaged United States, which seems bent on fighting its own battles, rather than helping European allies with the increased threat from Russia.

(Image credit: Peter Dejong)

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