query: instance_of 21 cm nebelwerfer 42
supports: The Luftwaffe was the aerial warfare branch of the combined German Wehrmacht military forces during World War II. Germany's military air arms during the First World War, the "Luftstreitkräfte" of the Army and the "Marine-Fliegerabteilung" of the Navy, had been disbanded in May 1920 as a result of the terms of the Treaty of Versailles which stated that Germany was forbidden to have any air force. The 21 cm Nebelwerfer 42 ( 21 cm NbW 42 ) was a German multiple rocket launcher used in the Second World War . It served with units of the Nebeltruppen , the German equivalent of the American Chemical Corps . Just as the Chemical Corps had responsibility for poison gas and smoke weapons that were used instead to deliver high - explosives during the war so did the Nebeltruppen . The name `` Nebelwerfer '' is best translated as `` smoke - thrower '' . It saw service from 1942 -- 45 in all theaters except Norway . It was adapted for aerial combat by the Luftwaffe in 1943 . Rocket artillery is a type of artillery equipped with rocket launchers instead of conventional guns or mortars. A multiple rocket launcher (MRL) or multiple launch rocket system (MLRS) is a type of rocket artillery system. 
  Rockets have different capabilities than artillery, like longer range, and different payloads, typically considerably larger warheads than a similarly sized artillery platform, or multiple warheads.
  Unguided rocket artillery is notoriously inaccurate and slow to reload, compared to artillery. To overcome this, rockets are combined in systems that can launch multiple rockets simultaneously. 
  Modern rockets can use GPS or inertial guidance, to combine the advantages of rockets with high accuracy. World War I (WWI or WW1), also known as the First World War, or the Great War, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. More than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars in history. Over nine million combatants and seven million civilians died as a result of the war (including the victims of a number of genocides), a casualty rate exacerbated by the belligerents' technological and industrial sophistication, and the tactical stalemate caused by gruelling trench warfare. It was one of the deadliest conflicts in history, and paved the way for major political changes, including revolutions in many of the nations involved. World War II (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 War II the deadliest conflict in human history. The Wehrmacht (lit. "defence force") was the unified armed forces of Nazi Germany from 1935 to 1946. It consisted of the "Heer" (army), the "Kriegsmarine" (navy) and the "Luftwaffe" (air force). The designation "Wehrmacht" for Nazi Germany's military replaced the previously used term, "Reichswehr" (191935), and was the manifestation of Nazi Germany's efforts to rearm the nation to a greater extent than the Treaty of Versailles permitted. The Deutsche Luftstreitkräfte (German Air Force)known before October 1916 as the Fliegertruppen des deutschen Kaiserreiches ("Imperial German Flying Corps") or simply Die Fliegertruppewas the World War I (191418) air arm of the German Army, of which it remained an integral part. In English-language sources it is usually referred to as the Imperial German Air Service, although that is not a literal translation of either name. German naval aviators serving with the "Marine-Fliegerabteilung" remained an integral part of the Imperial German Navy "(Kaiserliche Marine)". Both military branches, the army and navy, operated conventional aircraft, observation balloons and Zeppelins. The Treaty of Versailles was the most important of the peace treaties that brought World War I to an end. The Treaty ended the state of war between Germany and the Allied Powers. It was signed on 28 June 1919, exactly five years after the assassination of Archduke Franz Ferdinand. The other Central Powers on the German side of World War I signed separate treaties. Although the armistice, signed on 11 November 1918, ended the actual fighting, it took six months of Allied negotiations at the Paris Peace Conference to conclude the peace treaty. The treaty was registered by the Secretariat of the League of Nations on 21 October 1919.
candidates: 1918 army artillery branch conflict designation die five force gps mass may multiple rocket launcher nine november october part peace treaty people population result rocket rocket artillery rocket launcher service seven side six state treaty war world war
answer: rocket artillery