Q: You will be given a context, a subject and a relation. Your task is to generate a question based on the subject and relation. The generated question should include the given subject. Try to use a minimum number of words that are not present in either context, subject or relation while generating question.
Context : Rudolf Roy Jr. was born on 15 August 1920 in Spandau, Berlin and was named after his bricklayer father. 
Subject : Rudolf Roy 
Relation : conflict
A:
During which historic war was Rudolf Roy an officer?