Vietnam shadow hangs over Biden decision on Afghanistan

President Biden is facing a potential foreign policy and humanitarian catastrophe in Afghanistan as the Taliban makes rapid gains, capturing major cities and prompting concerns over the safety of U.S. diplomatic personnel and civilians on the ground.

The Taliban took control of Kandahar and Herat on Thursday, the second- and third-largest cities in Afghanistan after Kabul, followed by Lashkar Gar on Friday. The Biden administration is sending about 3,000 troops to the country to help evacuate diplomats from the U.S. Embassy in Kabul, as well as Afghans who have applied for Special Immigrant Visas (SIVs) for helping the United States during the war.