NATO's Air Exercise Sends Message to Russia.

Germany is set to host the largest air deployment exercise in NATO's history, with 10,000 participants and 250 aircraft from 25 nations responding to a simulated attack on a NATO member country. The exercise, called Air Defender 23, is intended to demonstrate the agility and swiftness of NATO's allied force as a first responder. The United States alone is sending 2,000 U.S. Air National Guard personnel and about 100 aircraft to take part in the training maneuvers. The drill will cause some disruption to civilian flights in Europe during the period.