What everybody is missing here is that the coalition to go into Afghanistan cobbled together by Bush/Cheney was a political face saving maneuver to begin with. A joke.
It was an American problem, but they got as many as they could to sign on in support of their phoney war on terror. After ignoring evidence handed over by American intelligence officials (thank you, Candi) and overseeing the biggest terrorist attack in history, I guess they had to beat the chest as loud as they could.