Instructions: 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.
Input: Context : Walter Oswald Watt, OBE (11 February 1878 -- 21 May 1921) was an Australian aviator and businessman. 
Subject : Oswald Watt 
Relation : conflict
Output:
What was the war that Oswald Watt fought in?