You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

[Q]: Category: U.S. MILITARY HISTORY 
Clue: This general commanded the first official American force to fight on the European continent
[A]: john pershing


[Q]: Category: KNOWLEDGE BY THE NUMBERS 
Clue: Number of males who served as British PM in the 1990s plus Oscars won by Tom Hanks plus protons in a helium nucleus
[A]: 6


[Q]: Category: MILITARY MEN 
Clue: Last name of the first father & son to be awarded medals of honor, for service in the Civil War & WWII respectively
[A]:
arthur & douglas macarthur