Vice President-elect Joe Biden pledged long-term American support for Afghanistan during a visit, and the commander of NATO-led forces told him that thousands of new American troops expected this year will need more support against surging Taliban violence. President-elect Barack Obama has promised to end the war in Iraq and refocus American military efforts on Afghanistan. Biden's visit is a sign that Obama plans to make the region an immediate priority. In a meeting Saturday with President Hamid Karzai, Biden "talked about ... the fight against terrorism, American troop increases as well as equipping and supplying of the Afghan forces," a statement from Karzai's office said, without providing any details. Earlier, America's top general in Afghanistan, Gen. David McKiernan, told Biden that thousands of new American troops expected in the country's south will need more support to beat back surging Taliban violence.