You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "how many us troops died in the vietnam war?" whose answer is 58,318.
Each document should contain about 30 words, and these documents should contain useful information.

Query: number of us troops that died in the vietnam war
Useful Output:

Doc 1: The Vietnam Conflict Extract Data File of the Defense Casualty Analysis System (DCAS) Extract Files contains records of 58,220 U.S. military
Doc 2: Since the Revolutionary War ended, 646,596 American troops have died in battle and more than 539,000 died from other, non-combat related causes.
Doc 3: An additional 10,786 died in the theater of war, but out of battle, making a total of 58,220 deaths. (Conflict casualty statistics differentiate
Doc 4: Of the 7262 blacks who died, 6, 955 or 96% were Army and Marine enlisted men. The combination of our selective service policies, our AFQT testing of both
Doc 5: According to the Department of Defense, 58,220 U.S. military personnel died as a result of the Vietnam War. Combat deaths: approximately 47,434