Complex sentence: Tommy's parents are killed when they flee the next day, and Gerry's family takes him in as they are flown to an offshore U.S. Navy carrier group where Umuntoni is overseeing the remaining worldwide governments' reactions.
Split into simpler sentences: Tommy's parents are killed when they flee the next day, and Gerry's family takes him in. They are flown to an offshore U.S. Navy carrier group where Umuntoni is overseeing the remaining worldwide governments' reactions.