Army units are organized groups of soldiers that work together to accomplish specific missions. These units vary in size and function, ranging from small teams, like squads, to larger formations, such as brigades and divisions. Each unit has a designated role, whether it be combat, support, or logistics, and is structured to ensure effective command and control. The composition of an army unit typically includes various specialties, such as infantry, armor, and artillery. Units are often named after historical figures or geographical locations, and they operate under the command of officers who lead and coordinate their activities. This organization allows for efficient deployment and execution of military operations.