Khabari Crossing(Kuwait): The last US soldiers rolled out of Iraq across the border to neighboring Kuwait at daybreak on Sunday, whooping, fist bumping and hugging each other in a burst of joy and relief.

Their exit marked the end of a bitterly divisive war that raged for nearly nine years and left Iraq shattered, with troubling questions lingering over whether the Arab nation will remain a steadfast US ally.

The mission cost nearly 4,500 American and well more than 100,000 Iraqi lives and USD 800 billion from the US Treasury.

The question of whether it was worth it all is yet unanswered.

Capt. Mark Askew, a 28-year-old from Tampa, Florida who was among the last soldiers to leave, said the answer to that question will depend on what type of country and government
Iraq ends up with years from now, whether they are democratic, respect human rights and are considered an American ally.

"It depends on what Iraq does after we leave," he said, speaking ahead of the exit. "I don't expect them to turn into South Korea or Japan overnight."

The war that began in a blaze of aerial bombardment meant to shock and awes the dictator Saddam Hussein and his loyalists ended quietly and with minimal fanfare.

US officials acknowledged the cost in blood and dollars was high, but tried to paint a picture of victory for both the troops and the Iraqi people now freed of a dictator and on a path to democracy.

But gnawing questions remain: Will Iraqis be able to forge their new government amid the still stubborn sectarian clashes. And will Iraq be able to defend itself and remain independent in a region fraught with turmoil and still steeped in insurgent threats.