BREAKING NEWS: President Obama has made an unannounced visit to the war front in Afghanistan, his first trip there as commander-in-chief. The president landed at Bagram Air Force Base. He is meeting with Afghan President Hamid Karzai, pictured above upon the arrival, and the Afghan cabinet in Kabul. He will also U.S. troops. The trip comes one week after his administration notched its biggest policy achievement to date, the passage of health care reform legislation. The president ordered a surge of 30,000 troops in December to help secure the country amid increasing violence. The plan is to fully deploy the additional forces by September, bringing the total troop level to 100,000. It now stands at 83,000.Click HERE for the ABCNews.com report from Martha Raddatz and Karen Travers. Embedded below is our most recent report from Afghanistan, "Four-Legged Diploacy," a Karen Russo dispatch that aired March 15 and featured the important veterinarian work of Americans at war.