U.S. Navy Petty Officer 1st Class Elizabeth Hamilton gets a book signed by Ezra Hill during the Joint Task Force Civil Support Black History Month celebration held Feb. 22, 2013. Hill is a retired U.S. Air Force Master Sgt. and was a member of the legendary Tuskegee Airmen, the first African-American military aviators in the United States armed forces. JTF-CS provides command and control for Department of Defense chemical, biological, radiological and nuclear response forces and also provides six core capabilities: mission command; identification and detection; technical and non-technical search and extraction; mass casualty and non-casualty decontamination; medical triage and stabilization; and medical and non-medical air and ground evacuation.