Complex sentence: During the Second World War, the Long Range Desert Group performed long-range reconnaissance and raiding during the North African Campaign and during the Cold War, the Corps Patrol Unit (CPU) consisted of 21 and 23 SAS and the HAC.
Split into simpler sentences: During the Second World War, the Long Range Desert Group performed long-range reconnaissance and raiding during the North African Campaign. And during the Cold War, the Corps Patrol Unit (CPU) consisted of 21 and 23 SAS and the HAC.