History of U.S. Relations with AfghanistanThe United States recognized Afghanistan in 1921 under King Amanullah and established diplomatic relations in 1935. Following the Soviet invasion in 1979, the U.S. supported Afghan resistance fighters and engaged in diplomatic efforts. The Taliban’s rise led to sheltering Osama bin Laden, prompting U.S. military action in 2001.Recognition of Afghanistan by the U.S., 1921The U.S. recognized Afghanistan on July 26, 1921, signifying its independence. This recognition was formalized when President Warren G. Harding received a mission from the Afghan Government at the White House.Establishment of Diplomatic Relations, 1935Diplomatic relations were established on May 4, 1935, with William H. Hornibrook presenting credentials to the Afghan government. This marked the beginning of official diplomatic ties between the two nations.Closure and Re-opening of U.S. Embassy in AfghanistanThe U.S. Embassy in Kabul was closed in 1989 due to security concerns following the Soviet withdrawal. It reopened as a Liaison Office in 2001 and regained embassy status in 2002 after recognizing the Interim Authority.Suspension of Embassy Operations, 2021In August 2021, the U.S. Embassy in Kabul suspended operations and shifted activities to Doha, Qatar due to security challenges.