The people there, the community, the lessons that I learned -- they're all based right in this few square miles where we'll now be able to give something back and bring the world back home after this incredible journey.

There are gonna be elections coming up among our NATO allies that we have to pay attention to. I anticipate that this kind of thing can happen again here. And so in addition to the report assessing what exactly happened, what we have also done is to make sure that the Department of Homeland Security and our intelligence teams are working with the various folks who run our elections.

That's what building a body of work is all about. It's about the daily labor, the many individual acts, the choices large and small that add up over time, over a lifetime to a lasting legacy. It's about not being satisfied with the latest achievement, the latest gold star, because the one thing I know about a body of work is that it's never finished. It's cumulative. It deepens and expands with each day you give your best. You may have setbacks and you may have failures, but you're not done.

One of the great qualities of Chancellor Merkel is that she is steady. She analyzes a situation. She's honest. Sometimes we've had disagreements, but when we do, it's very constructive. And we are consistently open with each other about how we should approach these issues.

People are less certain of their national identities or their place in the world. It starts looking different and disorienting. And there is no doubt that that has produced populist movements both from the left and from the right in many countries in Europe.

The biggest threat that we face right now is not a nuclear missile coming over the skies. It's in a suitcase. This is why the issue of nuclear proliferation is so important. It is the - the biggest threat to the United States is a terrorist getting their hands on nuclear weapons.

If we’re going to have arguments, let’s have arguments — but let’s make them debates worthy of this body and worthy of this country.