Terrorism is just a word.

For the US soldiers in vietnam, the kids with bombs were terrorists, for the vietnamese, they were freedom fighters. To the british, the american revolutionaries were terrorists (they didn't fight fair, never face to face), to the americans they were freedom fighters. To the russian army, the muhajadeen were terrorists, to americans they were freedom fighters.

Do you see where I'm going with this?

Terrorism is just a word, and words have different meanings in different contexts.