The "end of days," as soldiers were calling it, started at Contingency Operating Base Adder in southern Iraq. The base was the main staging ground for all U.S. troops exiting the country, and it was the last U.S. base to close.
There were a lot of lasts at COB Adder: the last signing ceremony, formally handing the last base over to the Iraqi government, the last briefing, the last patrol, the last hot meal.
The final convoy from the base left Iraq and crossed the border into Kuwait at dawn Sunday.
The 'Most Difficult Undertaking'