Terrorism Question for CNN/YouTube Republican Debate

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TEXT:

So, if terrorism is a tactic of using violence against noncombatants to achieve political objectives that means some American acts like the World War II bombings of Dresden and Hiroshima qualify as terrorism while an attack on a military target like the Pentagon would not. Which leads me to ask:

Do you accept this definition of terrorism that includes some past American actions but not an attack on the Pentagon, and, if not, what alternative definition of terrorism would you offer?

and

How do you fight a war against a tactic?