Complex sentence: Rosalind met her future husband Major Bruce Middleton Hope Shand at the end of the Second World War, who had just retired from the British Army after winning two Military Crosses and was a German prisoner of war.
Split into simpler sentences: Rosalind met her future husband Major Bruce Middleton Hope Shand at the end of the Second World War. He had just retired from the British Army after winning two Military Crosses and being a German prisoner of war.