Complex sentence: It was re-named 218 (Hampshire RHA) Battery in 1937 and served as part of 72nd (Hampshire) Anti-Aircraft Regiment, Royal Artillery during the Second World War but was placed in suspended animation after that war.
Split into simpler sentences: It was re-named 218 (Hampshire RHA) Battery in 1937. This unit was expanded to become 72nd (Hampshire) Anti-Aircraft Regiment, Royal Artillery during the Second World War but was placed in suspended animation after that war.