Complex sentence: She was integrated by the aircraft carrier, a Ticonderoga class cruiser and three Arleigh Burke-class destroyers with whom she trained, after which he became part of an international group aimed at combating drug trafficking in the Caribbean Sea.
Split into simpler sentences: She was integrated by the aircraft carrier, a Ticonderoga class cruiser, and three Arleigh Burke-class destroyers with whom she trained. After which, she became part of an international group aimed at combating drug trafficking in the Caribbean Sea.