Japanese surrender is governed by a table, similar to the British and Soviet surrender tables in "Advanced Third Reich", in which Japan is assessed each turn for loss of oil, destruction of her armed forces (a rules anomaly allows the Japanese air force to escape destruction by sheltering in the Strategic Warfare Box), loss of objectives and atomic attacks. Japan is unlikely to "win" in real terms so game victory is determined by how quickly the Allies achieve Japanese surrender (whether or not requiring atomic attacks or invasion of the home islands) compared to the actual historical timeline.