The Chemical Warfare Service deployed and prepared gas weapons for use throughout the world during World War II. However, these weapons were never used in combat. Despite the lack of chemical warfare during the conflict, the CWS saw its funding and personnel increase substantially due to concerns that the Germans and Japanese had a formidable chemical weapons capability. By 1942 the CWS employed 60,000 soldiers and civilians and was appropriated $1 billion. The CWS completed a variety of non-chemical warfare related tasks and missions during the war including producing incendiaries for flame throwers, flame tanks and other weapons. Chemical soldiers were also involved in smoke generation missions. Chemical mortar battalions used the 4.2-inch chemical mortar to support armor and infantry units.