The U.S. Department of Defense plans to scale back its participation in several NATO advisory groups, marking the latest sign of the Trump administration’s effort to reduce the U.S. military footprint in Europe amid strained relations with NATO allies, according to multiple officials familiar with the matter cited by The Washington Post.

Pentagon plans would primarily reduce U.S. personnel assigned to NATO Centres of Excellence (COEs) across Europe, which currently include about 200 American staff alongside personnel from other NATO members. Rather than withdrawing abruptly, the Defense Department intends to let positions go unfilled as assignments expire—a process that could take years. Officials said the move is unrelated to current tensions over Greenland.