Reminds me of the time in 1987 a West German piloted a single engine prop aircraft across the Soviet Union and landed in Red Square.
During World War 2, the Allies were able to effectively defend London from V1 cruise missiles using radar direct AA guns.
And the name of the pilot was......
An intrepid young man. Sure caught the Russians flat footed. Kid made it all the way to Red Square flying under the Soviet radar.