Flames of War: 10cm Chemical Mortar Platoon (GE598)The chief weapon of the chemical corps of the German army is the 10. 5cm Nebelwerfer 35, a conventional heavy mortar, which is able to fire high explosive, chemical or smoke rounds. Its name comes from Nebelwerfer, German for smoke or fog projector. In 1939, three Nebelwerfer battalions were available for the invasion of Poland. Nine months later, ten battalions (numbered 1 through 9 and the Nebel Lehr Abteilung, or Smoke Demonstration Battalion) took