This is a unique time for Israel to end the Hamas,Fatah threat. World opinion is fractionalized with Obama in place. Perhaps the best thing in his administration is tacit support to Israel’s actions to rid their lands of terrorism. A population that can not acknowledge your right to exist has no such right, itself.
I think this is a unique time and I do not believe it will exist, again. America lives on threads of its once world dominance. Consequently, replacements have not yet settled on successive domination. Heaven forbid it will be the UN for they will not be a friend or supporter.