Complex sentence: Future Rhodesian Prime Minister Ian Smith served in the British Royal Air Force (RAF) during the Second World War (1939--45), interrupting his studies at Rhodes University in South Africa to join up in 1941.
Split into simpler sentences: Future Rhodesian Prime Minister Ian Smith served in the British Royal Air Force (RAF) during the Second World War (1939--45). He interrupted his studies at Rhodes University in South Africa to join the air force in 1941.