Complex sentence: The KPAF has on occasion deployed abroad to assist fellow socialist states, with a North Korean flight of MiG-21s deploying to Bir Arida to help defend southern Egypt during the Yom Kippur War.
Split into simpler sentences: The KPAF has on occasion deployed abroad to assist fellow socialist states. Also, North Korean flight of MiG-21s deployed to Bir Arida to help defend southern Egypt during the Yom Kippur War.