Complex sentence: After undertaking a educational role in Sudan, Walker joined the RAF in South Africa, he died in military action when his Lockheed Hudson was shot down off the Norwegian coast, he was buried at Trondheim, Norway.
Split into simpler sentences: After undertaking a educational role in Sudan, Walker joined the RAF in South Africa. He died in military action when his Lockheed Hudson was shot down off the Norwegian coast, and was buried at Trondheim, Norway.