Many surveillance aircraft have flown near or over Ukraine in recent weeks. You may have seen the maps of their tracks which have appeared on social media, thanks to Flight Radar 24, ADS-B Exchange, and other flight tracking websites. They have included US Air Force E-8 JSTARS, RC-135 Rivet Joints, and RQ-4 Global Hawks; US … Continue reading “INVISIBLE” U-2 PLAYS ITS PART IN UKRAINE SURVEILLANCE