Fort Leonard Wood is the headquarters of the Chemical Corps, as well as the Chemical Defense Training Center (CDTF). Civilians from the Marine Corps, Navy, Air Force, DOD and allied nations come to train at the Fort Leonard Wood CDTF. In the Army, in order for a Soldier to complete their Chemical Military Occupational Specialty (MOS), they must pass the CDTF. As he becomes an NCO or officer, he will be required to return to the Advanced Leaders Course (ALC), Senior Leaders Course (SLC), Basic Officer Leaders Course (BOLC) or Career Chemical Captain Course (CCC) as this is a requirement determined by the Department of Defense (Unknown Chemical and Biological Defense Program Annual Report to Congress (2000), 2001). Prior to the construction of the CDTF, Soldiers underwent live toxicant training, but it had to be conducted outdoors because it represented the most effective training. Since 1973, the use of training with live chemical agents has ceased due to environmental concerns and weak safety regulations (Unknown, 2011). In 1981, the United States Army Chemical School (USACMLS) planned and developed a training facility intended for indoor use and safer for the environment and soldiers. Construction of the new training center cost $14.9 million and was completed in 1986 at Fort McClellan, Alabama. (Unknown, Transition Force, US Army Garrison-FT McClellan, Alabama) The first chemical class to use the new CDTF was in March 1987. Thus began the era of chemicals (Unknown, 2011) allowing soldiers to have the assurance that their equipment is more than capable of protecting them during a chemical attack. Many allied nations have used and received training from our CDTF, but none like Germany. In 1988, the German decontamination train...... middle of paper ......, from Wikipedia.Unknown. (2001). Chemical and Biological Defense Program Annual Report to Congress (2000). In Chemical and Biological Defense Program Annual Report to Congress (2000) (pp. 116, persistent agent. (nd) Medical Dictionary for Health Professions and Nursing. (2012). Retrieved March 20, 2014 from http://medical-dictionary.thefreedictionary.com/persistent+agentBacillus globigii (nd) WordNet 3.0, Farlex Clipart Collection (2003-2008). globigii. (2011, July 5). Retrieved March 18, 2014 from globalsecurity.org/military/agency/army/cdtf.htmUnknown. -FT McClellan, Alabama). Retrieved March 18, 2014 from FT McClellan: http://www.mcclellan.army.mil/Info.asp?article_id.=12