We've arrived at a crossroads in history. The choices are simple.

In a letter to President Bush Friday, House Speaker Nancy Pelosi and Senate President Harry Reid said they want out of Iraq. It's over. The American people are sick of it. There is no reason and no will to keep fighting this.

At the American Enterprise Institute the same day, senators John McCain and Joe Lieberman came out for a big, sustained surge of troops into Iraq. They made the case for fighting. Key word: "Winnable." They outlined the consequences of accepting defeat: Key word: "Catastrophic."

We are sharply divided as a nation. There will be no governing by consensus. Only by hardnosed leadership. This week, we'll find out what it is going to be. Neither of our options is attractive. But that's war.