Complex sentence: Amir Nachumi (born 1945) is a retired Israeli Air Force Brigadier General who in the course of his career shot down 14 enemy aircraft, making him one of Israel's top flying aces.
Split into simpler sentences: Amir Nachumi (born 1945) is an Israeli who served as an Israeli Air Force Brigadier General. In the course of his career, Nachumi shot down 14 enemy aircraft, making him one of Israel's top flying aces.