Complex sentence: The convoy's close escort was the First Escort Group (EG1), under Commander Broome, and included six destroyers, 11 corvettes, minesweepers or armed trawlers, and two anti-aircraft auxiliaries.
Split into simpler sentences: The convoy's close escort was the First Escort Group (EG1), under Cdr. J Broome, and included six destroyers, 11 corvettes, minesweepers or armed trawlers, and two anti-aircraft auxiliaries.