George Clooney on the Iraq war when it started

You can’t beat your enemy anymore through wars; instead you create an entire generation of people revenge-seeking. These days it only matters who’s in charge. Right now that’s us – for a while, at least. Our opponents are going to resort to car bombs and suicide attacks because they have no other way to win. [. . .] I believe [Secretary of Defense Donald Rumsfeld] thinks this is a war that can be won, but there is no such thing anymore. We can’t beat anyone anymore. [George Clooney in 2003]

Quoted from the IMDB page on Clooney’s bio. Be sure to also check out his retelling of the fight he had with David O. Russell (just search for this name on the page).