THE ARMY IS CALLING IT "THE SURGE"

And it has begun.

And I'm happy not to be one of the transportation planners on this one...

"This is the biggest move we've done since World War II," said a Pentagon official, who asked not to be identified.

The approximately 130,000 U.S. troops in Iraq now will be heading home over the coming four months, to be replaced by a more mobile, less heavily armed force of about 110,000. That force will include about 20,000 Marines and an increased proportion of National Guard and Reserve troops.