What were some of the weapons of mass destruction used in WW2?
During World War II, Germany worked to develop atomic weapons, though Allied scientists ultimately beat the Germans to this goal – the international team included many displaced émigré scientists from Germany itself; see German nuclear energy project. German scientists also did research on other chemical weapons during the war, including human experimentation with mustard gas. The first nerve gas, tabun, was invented by the German researcher Gerhard Schrader in 1937. During the war, Germany stockpiled tabun, sarin, and soman but refrained from their use on the battlefield. In total, Germany produced about 78,000 tons of chemical weapons. By 1945 the nation produced about 12,000 tons of tabun and 1,000 pounds of sarin. Delivery systems for the nerve agents included 105 mm and 150 mm artillery shells, a 250 kg bomb and a 150 mm rocket. Zyklon B was used by Nazi Germany as a chemical weapon to poison prisoners in the gas chambers of the largest extermination camp, Auschwitz Birkenau, and