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.

[EX Q]: Category: U.S.A. 
Clue: At 306 feet high, the Bennington Battle Monument in this state was once the tallest battle monument in the world
[EX A]: vermont

[EX Q]: Category: ADMIRALS 
Clue: Opposed to war with the U.S., he nevertheless planned the Japanese attack on Pearl Harbor
[EX A]: isoroku yamamoto

[EX Q]: Category: OBSESSIONS 
Clue: Cato the Elder's obsession with the threat offered by this city led in part to the Third Punic War
[EX A]:
carthage