Complex sentence: He later rejoined the 6th Lancers and participated in the Italian Campaign, World War II. He was the second in command and in 1945 commanded 6th Lancers, during the Italian Campaign for which he was Mentioned in Despatches and awarded the Distinguished Service Order.
Split into simpler sentences: He later rejoined the 6th Lancers and participated in the Italian Campaign, World War II. He was the second in command and in 1945 commanded 6th Lancers. During the Italian Campaign, he was Mentioned in Despatches and awarded the Distinguished Service Order.