Complex sentence: In mid-April "Birmingham", HMS "Manchester" and HMS "Cairo" escorted a troop convoy to Norway, and in May, "Birmingham", in company with HMS "Manchester" evacuated 1500 troops from Åndalsnes.
Split into simpler sentences: In mid-April "Birmingham", HMS "Manchester" and HMS "Cairo" escorted a troop convoy to Norway. In May, "Birmingham", in company with HMS "Manchester" evacuated 1500 troops from Åndalsnes.