![](https://theaviationist.com/wp-content/uploads/2014/06/RC-135U-Combat-Sent.jpg)
U.S. RC-135U spyplane and Russian Su-27 in one of the most dangerous aerial encounters since the Cold War.
According to U.S. Defense officials, the one between a U.S. RC-135U and a Russian Air Force Su-27 Flanker was something more than a routine intercept. The RC-135U is one of the most secretive U.S. surveillance […]