British fighter jets flew over Poland on Friday night as part of AN operation to bolster NATO’s eastern flank after Russian drones violated Polish airspace earlier this month, according to the UK Ministry of Defense.

Air force fighter jets from Germany and Sweden have been scrambled to intercept and track a Russian surveillance plane that was flying over the Baltic Sea. Military officials say two Swedish

Turkey’s acquisition of the Russian S-400 air defense system created a unique situation, since the country was also a partner in the F-35 program. The concern lies not in politics, but in the technology—placing the stealthy F-35 alongside the S-400 could risk exposing sensitive data on how the aircraft performs against one of the world’s most advanced SAM systems.