After a regime is removed, however, it is dangerous to leave a security vacuum.

It's a very bad thing when people exterminate other people, and people persecute minorities.

The American people are pretty impressive in their ability to keep after something if they think it is doable.

We did not go to war in Afghanistan or in Iraq to, quote, 'impose democracy.' We went to war in both places because we saw those regimes as a threat to the United States.

NATO is still the most remarkable alliance in history. It stuck together through 40 years of Cold War, and it then joined together to fight in Afghanistan. In the 1980s, I would not have thought this was going to be possible.

Donald Trump seems to be unconcerned about the Russian aggression in Ukraine. By doing this he tells them that they can go ahead and do what they are doing. That is dangerous.

For one thing I tend not to see myself in various moulds that people fit me into.