The U.S. had to re-route aircraft to avoid at least one close encounter with a Russian aircraft, the Pentagon confirmed on Wednesday.
The manned aircraft was within 20 miles of the Russian aircraft, the Department of Defense confirmed.
Russia and the United States are flying combat missions over the same country for the first time since World War II which raises concern over crowded airspace.
The incident occurred since the U.S. and Russia had their "deconfliction" talk last week and the next discussion has not been scheduled yet.
