The first Iraq War was one of necessity because vital U.S. interests were at stake, and we reached the point where no other national-security instruments were likely to achieve the necessary goal, which was the reversal of Saddam Hussein's invasion and occupation of Kuwait.

When great powers fade, as they inevitably must, it's normally for one of two reasons. Some powers exhaust themselves through overreach abroad, underinvestment at home, or a mixture of the two. This was the case for the Soviet Union. Other powers lose their privileged position with the emergence of new, stronger powers.

There's a pattern in Bush 43's presidency of being attracted to the big and the bold, and my whole reading of him is that he was instinctively uncomfortable with what you might call a modulated foreign policy - a foreign policy of adjustment, of degree.

Richard N. Haass Quotes