Are we or are we not at war with Pakistan and Yemen too?

With all of this talk on Libya lately, I keep hearing the same response from people…. “We are already in two wars, why another?”
Almost everyone I come in contact with, mentions the two wars we are in. For the past few years, we have been sending unmanned drones into Pakistan and Yemen and killing plenty of civilians, although the news never mentions the word war when these attacks take place.
If we are taking unmanned planes, flying them over another country, dropping bombs, and killing civilians, I would either call that war, or by our own definition, terrorism.

When I mention the four, now five wars, we are in, people look at me like I have five heads.
How do you feel about our actions towards Pakistan and Yemen?
Should these attacks be classified as war or terrorism?
If an Arab flew a remote control plane with a bomb attached to it and blew it up in the US, would that be terrorism?