Soldiers, Airmen arrive in field for JRTC Published Jan. 14, 2020 By Tech. Sgt. David W. Carbajal 621st Contingency Response Wing Fort Polk, La. -- Members of the 821st Contingency Response Group are participating in the first Joint Readiness Training Center exercise of 2020, for the joint training and to gain interoperability with multinational partners. Soldiers from Joint Base Elmendorf-Richardson and Fort Wainwright, Alaska, have also traveled to Louisiana to work along side its sister services and other nation's militaries.