Trump will be at the NATO summit through Wednesday, where he is expected to meet with leaders from across Europe, including Ukrainian President Volodymyr Zelensky.

The alliance’s summit will minimize references to either Russia or Ukraine to avoid antagonizing the U.S. president who has sided with the aggressor.

NATO leaders are gathering in the Netherlands for the start of a historic two-day summit that could unite the world’s biggest security organization around a new defense spending pledge or widen divisi

President Donald Trump cast doubt on Tuesday over the United States' commitment to defending its NATO partners, suggesting there were "numerous" definitions to the cornerstone of the alliance's mutual defence pact.

US President Donald Trump swept into NATO’s Hague summit Tuesday, with allies hoping a pledge to ramp up defense spending will keep the mercurial leader of the military superpower committed to protecting them.

WASHINGTON (AP) — President Donald Trump on Tuesday injected some uncertainty over whether the U.S. would abide by the mutual defense guarantees outlined in the NATO treaty as he headed to its summit — comments that could revive longstanding concern from European allies about his commitment to the military alliance.