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Bag nasty
Marine Corps-issued A-ration, colloquially known as a "bag nasty" or "box nasty." In this case the box held two sandwiches, cereal, fresh fruit, crackers, peanut butter, jam, a muffin, salt, pepper, and a drink.

A-ration is a term used in the United States armed forces for a meal provided to troops prepared using fresh, refrigerated, or frozen foods. The use of fresh, refrigerated or frozen foods distinguish 'A' rations from 'B' rations, which use canned or preserved ingredients to enable them to be served without adequate refrigeration or freezer facilities.

'A' ration meals may be served in dining facilities ("DFAC"), prepared in the field by the use of field kitchens, or prepared at a fixed facility and transported to field locations in containers.


'A' rations today may include the Unitized Group Ration A (UGR-A), a hybrid meal kit designed to feed a group of 50 persons for one meal. The UGR-A has several different varieties, including a tray-based heat and serve (T-rat) form, heated by hot water immersion when a field kitchen is not available, or the express form, with a self-heating module and disposable accessories. The UGR-A is used to sustain military personnel during worldwide operations that allow organized food service facilities.

The UGR-A includes perishable/frozen type entrees (A-Rations) along with commercial-type components and perishable/frozen type entrees to provide the luxury of an A-Ration meal in the field, configured into individual meal modules for ease of ordering, distribution, and preparation. The UGR-A has at least 9 months shelf life (at 80 °F or 27 °C for semi-perishable modules and at 0 °F or −18 °C for perishable modules).

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