The A-ration (officially Field Ration, Type A) is a United States military ration consisting of fresh, refrigerated, or frozen foods. A-rations may be served in dining facilities, prepared in the field using field kitchens, or prepared at a fixed facility and transported to field locations in containers.[1] Its modern successor is the Unitized Group Ration – A (UGR-A), which combines multiple types of rations, including the A-ration, under one unified system.[2]
The A-ration differs from other U.S. alphabetized rations such as the B-ration, consisting of canned or preserved food; C-ration, consisting of prepared wet food when A- and B-rations are not available; D-ration, consisting of military chocolate; K-ration, consisting of three balanced meals; and emergency rations, intended for emergencies when other food or rations are unavailable.[3]