Obama visits Afghanistan to tour war zone

Less than four months before the general election, Obama's first visit to Afghanistan, with a subsequent stop in Iraq, was rich with political implications, although the Illinois senator flew as part of an official congressional delegation.

Rival John McCain has criticized Obama for his lack of time in the region, and the Republican National Committee had a running ticker tallying the more than 900 days since his last visit to Iraq.

Spokesman Robert Gibbs said Obama arrived in Kabul early Saturday.

"I look forward to seeing what the situation on the ground is," Obama told a pair of reporters who accompanied him to his departure from Andrews Air Force Base on Thursday.

"I want to, obviously, talk to the commanders and get a sense both in Afghanistan and in Baghdad of, you know, what the most, their biggest concerns are, and I want to thank our troops for the heroic work that they've been doing," he said before his flight overseas.