Complex sentence: He was educated at St Peter's College, Adelaide and trained as an Royal Australian Air Force pilot in 1942 and 1943, but did not participate in wartime action as he was seconded to the Department of Supply.
Split into simpler sentences: He was educated at St Peter's College, Adelaide. He trained as an Royal Australian Air Force pilot in World War II in 1942 and 1943, but did not participate in action, as he was seconded to the Department of Supply.