Do the Actions of 19 men justify an invasion on a country?

Ughhhh, dumb people. The Taliban was in power of their government at the time but now they're not so now were supporting their country in killing the Taliban which is harboring Al-Qaeda who are planning on killing every single person that calls themself an America, Christian, Catholic, Budist, Hinduist, Morman, or anything other than Ala loving Muslim. Look outside your Liberal box and do some research.