The War jargon

If you thought the "one man's suicide bomber is another's freedom fighter" issue was difficult, i did, things just got alittle more complicated with some new jargon: insurgent or guerilla. What's the difference anyway? Why is she writing about this, you ask! Because, my little earthlings, i wanted to post something about the peace effort in afghanistan when i realised i didn't know the proper name for the guys fighting the coalition troops. They are not called guerillas, i was certain of that. But what then?! It came to me, evnetually, but the point had been made!

Ps: Does "one man's suicide bomber is another's freedom fighter" argument apply in Iraq and Afghanistan or is it valid only with respect to the middleast?