[Fall of the Berlin Wall] is a reminder that the commitment of the United States, to Europe is enduring and it's rooted in the values we share; our commitment to democracy, our commitment to rule of law, our commitment to the dignity of all people in our own countries and around the world.

I refuse to condemn your generation and future generations to a planet that's beyond fixing.

For me, personally, the most difficult moments had to do with not just terrorist attacks, but also shootings.

There is no doubt that the actions of ISIS are designed to amplify their power and the threat that they pose. That helps them recruit. That adds in the twisted thoughts of some young person that they might want to have carry out an action that somehow they're part of a larger movement.

I do have an obligation to make sure that I am following some of the rules. I can't simply ignore laws that are out there.

I believe that for all our imperfections, we are full of decency and goodness, and that the forces that divide us are not as strong as those that unite us.

We are very grateful for the vital contributions Germany has made to this fight, training local forces in Iraq, sharing intelligence providing reconnaissance aircraft including the recent deployment of additional NATO AWACS.