Final answer:
The basic allowance for subsistence (BAS) in the military was based on the provision of food and clothing. These items were essential for meeting basic needs and ensuring success in war.
Step-by-step explanation:
The basic allowance for subsistence (BAS) in the military was based on the historic origins where the military provided two items: food and clothing.
During subsistence times, food and resources like tools, wood, and animals were valued for their primary importance.
In war, securing enough men, money, food, and supplies were considered the basic requirements to be successful.