Smesta

In naval usage, operations in which a designated unit operates independently of a specified force or group, but is tasked to provide contact information to, receive intelligence from and,if authorized, to cooperate and coordinate operations with the supported force. Tactical control of the unit remains with the assigning authority who coordinates tasking and movement of the unit in response to the requirements of the supported force commander.

That support which units render each other against an enemy, because of their assigned tasks, their position relative to each other and to the enemy, and their inherent capabilities.

In an underwater environment, actions taken to search for, intercept, locate, record and analyze radiated acoustic energy for the purpose of exploiting such radiation. The use of acoustic warfare support measures involves no intentional underwater acoustic emission and is generally not detectable by hostile forces.

The support provided by a unit not attached to or under the command of the supported unit or formation, but required to give priority to the support required by that unit or formation.

In maritime usage, operations related to the protection of a specific force by other units, normally under the tactical control of that force.

In land operations, a primary tactical task given to an artillery unit to provide fire requested by a supported unit other than an artillery unit, without specifying the command relationship.

All forms of support given by air forces on land or sea.

Air support to meet specific requests which arise during the course of a battle and which by their nature cannot be planned in advance.

Military engineering tasks associated with the direct support to current or imminent operations. Note: They are conducted by the military engineers of any service or component to support land, air, maritime, information, space and special forces operations, with the emphasis on speed of execution.

In military engineering, the deliberate, long-term preparation for and indirect support to ongoing or future operations, as well as the sustainment of a force throughout all stages of an operation.