You can't just drop the 82nd Airborne into Baghdad and it will all be over.

The United States can't impose democracies. We can't impose our will. The Russians found that out in Afghanistan.

This is a complicated time to govern in the world today because of so much going on and it's coming at us at such an unprecedented rate.

There are always consequences to actions that you take. There are consequences to inaction. And thinking through, asking the questions, "Well, then what happens? What comes next?" is critically important.

Closing Guantanamo Bay is not a military solution. The closing of that prison, which I support, I supported it when I was in the Senate, requires more than just a military dimension.

This is eventually how Syria will be resolved - through a political settlement.

The recent wave of Taliban attacks has made clear that the international community must not waiver in its support for a stable, secure and prosperous Afghanistan.