Let me suggest these initiatives : draw down our overextended global system of military bases ; cancel our foolish missile defense program ; lead a worldwide crusade to rid the earth of nuclear weapons ; acknowledge that we were misguided in invading Iraq , move to share responsibility with the United Nations and leading powers , and schedule withdrawal of our troops ; and turn to a more evenhanded policy in the Israeli-Palestinian conflict by ceasing financial and diplomatic support for Israel 's settlement expansion into West Bank territory .