A brigade is a military unit typically composed of several battalions, which are smaller groups of soldiers. Brigades are often part of a larger formation, such as a division, and can include various types of troops, such as infantry, artillery, and support units. Their primary role is to conduct operations and engage in combat as needed. In addition to military contexts, the term "brigade" can also refer to organized groups in other fields, such as firefighting or community service. For example, a firefighting brigade is a team of firefighters who work together to respond to emergencies and protect lives and property.