Bon et Mal (English: Good and Bad) were 20 kiloton nuclear devices developed by the French Empire as part of Project Zeus in 1958 and early 1959 and which were detonated off of the northern Anatolian coast on July 9, 1959, bringing the nuclear age to fruition. At the time of their detonation, Bon and Mal were the only atomic warheads in the French armory, as the Zeus researchers were still developing technology for rapid construction of nuclear weapons.