I could write a long rebuttal to how moronic your poll is. Fortunately most of what I have to say has been covered. I will however give you a quick lesson in Law of Armed Conflict.
Uner the UN charter, all war is illegal, except in the case of self defence. The charter goes on to list what is considered self defence. When a country aids and abets a terrorist who has attacked your country, it is considered self defence to invade that country and do the minimum required to ensure the safety of your country. In the case of Afghanistan, if the taliban had not been removed, they would have continued to aid and abet Bin Laden to attack Western countries. Hence, the invasion and removal of the Taliban was legal. Not only that, but NATO continues to be there at the invitation of the current Afghan government under a UN mandate. Therefore, what is going on in Afghanistan is %100 legal. And all you have to do is look at the infant mortality rate in Afghanistan today, as compared to the Taliban years, to realise how much better off the people are.
Another self defence clause is that you are allowed to pre-emptively attack a country that is building WMDs for the purpose of attacking your country. That is the legal justification Bush used for invading Iraq. Thats why he concentrated on WMD's, and not how terrible a person Hussein was. (It is not legal to invade a country to remove their ruler because he is a bad person). If Bush had found WMD's in Iraq, legally speaking, he would be completely vindicated. However, because he didn't he is technically on a lot shakier ground.
Anyway, that was far longer than I wanted. So I will just close by saying that you and your group are clearly extremely ignorant, and should probably educate yourselves a little bit. It is people like you that make the world a worse place to live.