Information: - World WarII (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the world's nationsincluding all of the great powerseventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, including the Holocaust (in which approximately 11 million people were killed) and the strategic bombing of industrial and population centres (in which approximately one million were killed, and which included the atomic bombings of Hiroshima and Nagasaki), it resulted in an estimated 50 million to 85 million fatalities. These made World WarII the deadliest conflict in human history. - The Holocaust (from the Greek ': "holos", "whole" and "kaustos", "burnt"), also referred to as the Shoah"' (Hebrew: , "HaShoah", "the catastrophe"), was a genocide in which Adolf Hitler's Nazi Germany and its collaborators killed about six million Jews. The victims included 1.5million children and represented about two-thirds of the nine million Jews who had resided in Europe. Some definitions of the Holocaust include the additional five million non-Jewish victims of Nazi mass murders, bringing the total to about 11 million. Killings took place throughout Nazi Germany, German-occupied territories, and territories held by allies of Nazi Germany. - The Soviet RG-42 ( 42 > "Ruchnaya Granata obraztsa 42 goda", "Hand Grenade pattern of [19]42 year") was a fragmentation grenade designed by S.G. Korshunov. It was originally introduced during World War II from 1942 onwards as an emergency measure to replace the complex RGD-33 grenade. It continued in use with the USSR and its Warsaw Pact allies in the post-war period until replaced in 1954 by the RGD-5 grenade. Stockpiles were held for emergency or reserve issue, military aid, or foreign sales. They were eventually destroyed in the 1980s due to the TNT filling degrading and becoming unsafe. - The United States dropped nuclear weapons on the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945, respectively, during the final stage of World War II. The United States had dropped the bombs with the consent of the United Kingdom as outlined in the Quebec Agreement. The two bombings, which killed at least 129,000 people, remain the only use of nuclear weapons for warfare in history. - The RGD-5 ("Ruchnaya Granata Distantsionnaya") English "Distance Hand Grenade" or "Long-Range Hand Grenade", is a post-World War II Soviet anti-personnel fragmentation grenade, designed in the early 1950s. RGD-5 was accepted to service in 1954. It is still in service with many of Russia's former client states and has been supplied to Iraq as well as other Arab nations. - The Warsaw Pact, formally the Treaty of Friendship, Co-operation, and Mutual Assistance and sometimes, informally, WarPac. was a collective defense treaty among the Soviet Union and seven other Soviet satellite states in Central and Eastern Europe in existence during the Cold War. The Warsaw Pact was the military complement to the Council for Mutual Economic Assistance (CoMEcon), the regional economic organization for the communist states of Central and Eastern Europe. The Warsaw Pact was created in reaction to the integration of West Germany into NATO in 1955 per the London and Paris Conferences of 1954, but it is also considered to have been motivated by Soviet desires to maintain control over military forces in Central and Eastern Europe. - The Soviet RG - 41 was a fragmentation grenade developed during World War II. It was in production for only short time from 1941 to 1942 before being replaced by RG - 42 . It contained a 150 g high explosive charge in a cylindrical can ; the total weight was about 440 grams . The grenade could be thrown about 30 to 50 meters ; the lethal radius was up to 5 meters ; the maximum lethal radius was up to 15 meters . Given the paragraphs above, decide what entity has the relation 'country of origin' with 'soviet union'.
A:
rg-41