Salmo,

You are leaving out a lot of variables that make things grey for people. War by itself is wrong. All would agree that war for no reason is wrong. But when you throw in claims of land or religion etc. it can be justified by different people for a whole host of reasons. We create the Gray to meet our needs.

The two sides in this current conflict are both equally valid in their claims. Radical islam has a right to reclaim what they think was theirs. We have a right not to be attacked for what we see as no reason and therefore defend ourselves even preemptively. It just depends what side you want to be on when the dust settles. Some want the US view to win, some want the Islamic view to win. Some just hate fighting and would like to see something in the middle. No different than what we see in our daily lives except people get killed.