Sgt. Kyle J. Cosner/USASOC PAO via Wikimedia Commons
1993: A U.S. Army mission to seize two high-echelon lieutenants of warlord Mohamed Farrah Aidid's organization in Mogadishu, Somalia, goes wrong when Somali militia and armed civilian fighters down two MH-60 Black Hawk helicopters (similar to the one pictured) over the city. The subsequent rescue operation to secure and recover the crews of both helicopters turned into an overnight standoff in the city. The heavy fighting, which would later become known as the Battle of Mogadishu and be portrayed in the film "Black Hawk Down," would leave 18 American soldiers dead and as many as 1,000 Somalis dead.