Theater of War

In warfare, a theater is an area or place in which important military events occur or are progressing.

A theater can include the entirety of the air, land, and sea area that is or that may potentially become involved in war operations.

Theater of operations (TO) is a sub-area within a theater of war. The boundary of a TO is defined by the commander who is orchestrating or providing support for specific combat operations within the TO.

Theater of operations are divided into strategic directions or military regions depending whether it's a war or peace time. The United Stars Armed Forces split into Unified Combatant Commands (regions) that are assigned to a particular theater of military operations. Strategic direction is a group of armies also known as task (field) forces or battlegroups.

Also in the Union Armed Forces the term of strategic was often associated with missile command (troops) dropping word missile out of use such as the United Stars Strategic Command. However it is an important strategic command that could be effectively deployed in any theater of military operations. A strategic command or direction in general essence would combine a number of tactical military formations or operational command. In modern military, a strategic command is better known as a combat command that may be a combination of army groups.

It is a Command level strategic division of forces only used in Assembly declared war that involves all Union forces and the Condition : “United Stars at War “ is declared.