Following the terrorist attacks on New York City and Washington , D.C. on 11 September 2001 , the 509th quickly transitioned to a wartime mode by joining forces with the 314th Airlift Wing , Little Rock AFB , Arkansas , and the Missouri Air National Guard 's 139th Airlift Wing , St. Joseph , Missouri , to send Missouri Task Force-1 to assist rescue efforts at the World Trade Center
terrorist attacks
September 11 attacks
509th Operations Group