Operation Eastern Exit was the codename given to the military evacuation of the United States embassy in Mogadishu, the capital of Somalia, in January 1991. In late December 1990, violence quickly enveloped the city as armed militants began clashing with government soldiers. On 1 January 1991, the US Ambassador to Somalia, James Keough Bishop, contacted the Department of State requesting an evacuation of the embassy, which was approved the following day. United States Central Command began planning and mobilizing forces that evening. The initial plan was to evacuate with a military transport plane through the Mogadishu International Airport, but this was later abandoned. A helicopter evacuation via the USS Guam and USS Trenton was the remaining option.

On the morning of 5 January, a 60-person Marine and Navy SEAL security detail was dispatched from Guam aboard two CH-53E Super Stallion helicopters to secure the embassy and prepare for the main evacuation. The two helicopters returned to Guam with the first 61 evacuees. Throughout the day, foreign diplomats and civilians sought refuge at the embassy. Four waves of five CH-46 Sea Knight helicopters each evacuated the embassy compound shortly after midnight on 6 January. The evacuees were transported to Muscat, Oman, where they disembarked on 11 January. In total, Operation Eastern Exit evacuated 281 (with a 282nd born aboard ship) diplomats and civilians from 30 countries, including 12 heads of missions (eight ambassadors and four chargs d'affaires).

The Embassy of the United States of America to Somalia is a diplomatic mission of the United States in Mogadishu, Somalia from 1960 to 1991. In 1957, the US opened a consulate-general in Mogadishu—the capital of the Trust Territory of Somalia, a UN trusteeship under Italian administration. The consulate was upgraded to embassy status in July 1960, when the US recognized Somalia's independence and appointed an ambassador. The embassy served to counter Soviet influence during the Cold War and also served as a base for the United States Agency for International Development, which had a large presence in the country. In 1989, the embassy moved from a dilapidated building in central Mogadishu to a new compound on the outskirts of the city.

Violence quickly enveloped the city in late December 1990, during the Somali Civil War, and on 1 January 1991, the ambassador contacted the State Department to request the closure and evacuation of the embassy. Approval was given the following day, but violence and the collapse of the central government prevented the US, and several other countries, from airlifting their diplomats and civilians through Mogadishu International Airport. USS Guam and USS Trenton, which were stationed off the coast of Oman, were dispatched to airlift staff from the embassy; American civilians and many foreign diplomats also gathered at the embassy, seeking evacuation. The embassy closed on January 5, 1991 and 281 American and foreign diplomats and civilians were airlifted by helicopter from the embassy compound to Guam and Trenton.

In December 1992, the embassy compound was reoccupied and repaired to serve as a headquarters for US personnel within the Unified Task Force and, following the transition to UN control, a base for UNOSOM. The US worked with various parties in Somalia to establish peace and formally recognized the newly established Federal Government of Somalia in January 2013. In May 2015, US Secretary of State John Kerry visited Somalia and stated that the US plans to reopen its embassy soon; the Somali government presented him with the real estate deed for land reserved for the new US embassy compound in Mogadishu. The move came three months after President Obama nominated Katherine Dhanani to the post of US ambassador to Somalia, who would have been the first US ambassador to Somalia since 1991, but she withdrew three months later.In December 2018, the United States established a permanent diplomatic mission in Mogadishu. On October 2, 2019, the United States announced the reestablishment of the United States Embassy in Mogadishu.