What term describes multiple military departments (Army, Navy, Air Force) working together?

The term that best describes multiple military departments, such as the Army, Navy, and Air Force, working together is "Joint Operations." This concept encompasses the collaboration and integration of forces from different branches of the military to achieve a common goal or mission. Joint Operations are essential for maximizing the effectiveness of military resources and enhancing operational capabilities, as they leverage the unique strengths and capabilities of each service.

In a Joint Operation, various elements from different armed services coordinate their planning, execution, and logistics to operate cohesively. This approach is particularly important in modern warfare, where the complexity of operations often requires the seamless integration of land, air, and maritime forces.

While Unified Command also involves coordinated efforts among different military departments, it specifically refers to a command structure where a single commander is responsible for unified operations across multiple services. This is a narrower concept compared to Joint Operations, which refers to the broader collaborative efforts. Similarly, Multinational Forces involves cooperation with military units from other nations, and Composite Warfare refers to a specific method of coordinating operations, particularly in naval contexts.