At the height of the Congo civil war, the state of Katanga seceded from the Republic of Congo, prompting the United Nations to deploy peacekeepers. In response, the Katangese ambushed a contingent of UN troops. The 155 Irish peacekeepers were able to hold for six days before running out of ammunition, despite facing nearly 5000 men armed with mortars and field artillery. As the first tank to be manufactured with a smooth-bore barrel, the U.S.S.R's T-62 was capable of firing kinetic energy penetr