The United States plans to reduce the number of personnel it has stationed within several key NATO command centers, a move that could intensify concerns in Europe about Washington's commitment to the alliance, three sources familiar with the matter said this week, Reuters reported. 

As part of the move, which the Trump administration has communicated to some European capitals, the U.S. will eliminate roughly 200 positions from the NATO entities that oversee and plan the alliance's military and intelligence operations, said the sources, who requested anonymity to discuss private diplomatic conversations.

Among the bodies that will be affected, said the sources, are the UK-based NATO Intelligence Fusion Centre and the Allied Special Operations Forces Command in Brussels. Portugal-based STRIKFORNATO, which oversees some maritime operations, will also be cut, as will several other similar NATO entities, the sources said, according to Reuters.