Lt. Gen. Alexander Sollfrank, chief of NATO's Joint Support and Enabling Command, said that NATO plans to send its troops, primarily U.S. soldiers, to the front lines in the conflict against Russia.

NATO has prepared a strategy for the quick deployment of its forces if Russia launches an attack on Europe in the future. The creation of "land corridors" is one of its features, since it allows for the quick deployment of about 300,000 soldiers, primarily American, to front-line positions in...