Instructions: Generate a correct and concise answer for the question based on the words in the context.
Input: Context : Udo Cordes (22 July 1921 -- 7 March 2007) was a highly decorated Oberleutnant in the Luftwaffe during World War II, and a recipient of the Knight's Cross of the Iron Cross.
Question : Which conflict was Udo Cordes a part of?
Output:
World War II