The final U.S. combat brigade leaves Baghdad:

The 4th Stryker Brigade, 2nd Infantry Division, which left Iraq this week, was the final U.S. combat brigade to be pulled out of the country, fulfilling the Obama administration’s pledge to end the U.S. combat mission by the end of August. About 50,000 U.S. troops will remain in Iraq, mainly as a training force.

“Operation Iraqi Freedom ends on your watch!” exclaimed Col. John Norris, the head of the brigade.

“Hooah!” the soldiers roared, using an Army battle cry.

Shortly before midnight Saturday, a group of infantrymen boarded Stryker fighting vehicles, left an increasingly sparse base behind and began scanning the sides of a desolate highway for bombs. For many veterans, including some who made the same trip in the opposite direction years ago under fire, it was a fitting way to exit.

“They’re leaving as heroes,” Norris said of his soldiers. “I want them to walk home with pride in their hearts.”