The article presents the concept of food supplies for the mechanized battalion in defense operations. It was done by identifying the area of the organization of feeding soldiers at the battalion level during tactical operations, presenting the possibilities of feeding the forces at the battalion level in defense operations, and presenting the optimal concept of food supplies for the battalion in the assumed situation of tactical operations. As a result of the considerations, conclusions were developed, which clearly show the relationship between optimal food supplies of the mechanized battalion in defense and the security of the combat tasks put before the battalion commander.