An infantry battalion is a military unit typically consisting of 300 to 1,000 soldiers. It is primarily responsible for ground combat operations and is organized into several companies, each with specific roles. The battalion is a key component of a larger formation, such as a brigade, and is often equipped with various weapons and vehicles to support its missions. Infantry battalions are trained to engage in direct combat, conduct reconnaissance, and perform defensive operations. They play a crucial role in military strategy, often working alongside other units like artillery and armor to achieve operational objectives on the battlefield.