Player Embed Code: Download Embed Share Mass Casualty Exercise Immediate Response 2019 (SM) Defense Media Activity - Europe Africa May 17, 2019 | 0:55 Airmen assigned to the 433rd Medical Group, 433rd Airlift Wing, San Antonio, Texas, and the 301st Medical Squadron, 301st Medical Group, Carswell Field, Naval Air Station, Fort Worth Joint Reserve Base, Texas worked together with members of the Slovenian Armed Forces and Macedonian Armed Forces to enhance their medical response capabilities. Immediate Response 2019 is a multinational exercise, co-led by the Croatian Armed Forces, Slovenian Armed Forces and U.S. Army Europe, designed to improve readiness and interoperability among participating allied and partner nations.