Teacher:Generate a correct and concise answer for the question based on the words in the context.
Teacher: Now, understand the problem? Solve this instance: Context : Johannes Friedrich Wilhelm Anhalt (28 March 1917 -- 13 May 1979) was a Kapitanleutnant with the Kriegsmarine during World War II and recipient of the coveted Knight's Cross of the Iron Cross (German: Ritterkreuz des Eisernen Kreuzes).
Question : In what war did Wilhelm Anhalt fight?
Student:
World War II