After thirteen years of Operation Enduring Freedom, the U.S. military and NATO allies shifted focus from major military operations to a smaller role of NATO-led training and assistance. While the bulk of the new mission was under the NATO-led Resolute Support Mission (RS), "a separate 'non-NATO' contingent of U.S. forces will participate in force protection, logistical support and counterterrorism activities." When OFS started U.S. troop levels in Afghanistan were at 9,800 troops. General Campbell requested an additional 1,000 troops while NATO troop levels were built up to a force of about 13,500. His request was granted. In 2019, U.S. troop levels were at 14,000 troops in combined support of NATO RS missions and OFS. By January 2021, the U.S. had reduced its force level to 2,500 troops. However, it was later revealed that U.S. has 1000 more troops, which include Special Operations forces, than it disclosed in Afghanistan. Moreover, as of January 2021, there were still approximately 18,000 military contractors, of which a third were U.S. citizens, in Afghanistan President Biden stated on July 8, 2021, that the war in Afghanistan would officially conclude on August 31, 2021. but ended with the
fall of the Islamic Republic. == Congressional reports ==