On July 18, 1921, an Afghan mission headed by Mohammad Shah Wali arrived in the United States. The Afghan delegation met with the U.S. Secretary of State, Charles E. Hughes on July 21st. Throughout the 1920s the United States remained reluctant to establish diplomatic relations with Afghanistan.
On April 26, 1934, Afghan King Mohammad Zahir renewed his request for recognition. President Franklin D. Roosevelt in an August 21, 1934 letter to King Zahir extended the United States' formal recognition and the establishment of diplomatic relations with Afghanistan.
United States President Barack Obama and Afghan President Hamid Karzai exchange documents after signing the Enduring Strategic Partnership Agreement Between the United States of America and the Islamic Republic of Afghanistan at the Presidential Palace in Kabul, Afghanistan on 2 May 2012. (Official White House Photo by Pete Souza)