I do believe that Chancellor Merkel and Germany are a lynchpin in protecting the basic tenets of a liberal, market-based democratic order that has created unprecedented prosperity and security for Europe, but also for the world.

I don't regret the fervor, because I do believe, in the African American community but also for other communities, and I know from talking to people, for communities around the world, the election of an African American to the most powerful office on Earth meant things had changed, and not just in superficial ways. That in some irreversible way the world was different.

What I remember thinking at that point, having gone through both the ups and downs of my first four years, and seeing the sea of people was, "What a remarkable country this is and how lucky am I that we live in a place where the son of a single mom, not born into any kind of fame or fortune, in a pretty remote state somehow can end up be in a position to - to make a difference."

We do not want to keep our troops in Afghanistan. We see no military - we seek no military bases there. It is agonizing for America to lose our young men and women. It is costly and politically difficult to continue this conflict. We would gladly bring every single one of our troops home if we could be confident that there were not violent extremists in Afghanistan and now Pakistan determined to kill as many Americans as they possibly can.

Keep in mind that, when I came in, we had had a crisis that was the worst we've seen since the 1930s, and working with people like Chancellor Merkel, working with the G-20 and other institutions internationally, we were able to stabilize the financial system, stabilize the US economy and return to growth.

This is a matter of Congress authorizes spending. They order me to spend.

We have a historic opportunity to prevent the spread of nuclear weapons in Iran, and to do so peacefully, with the international community firmly behind us. We should seize that chance.