Why the US Isn't a Key Player on the Geo Political Scene

After 9/11, the us. wanted 11 to happen so it could establish global or regional domination. Afghonistan was a minor country that was simply not a key player on the geo political scene. Ira was a much bigger player. If i were planning a strategic war to promote a global pax americana, i would not start by targeting afghanistan. Going after afghanistan instead of one of the bigger players would not be a wise choice.