1S, 2S, 3S, 4S, 5S, 6S etc. (S - serial / sequential)

sequential operations

sequential lobing

sequential checker

letter bomb (parcel bomb, mail bomb, postal bomb etc)

one-time report (on status of equipment etc.)

Russian New Generation Warfare (RNGW) (4th Generation Warfare, Hybrid War etc.)

orphan (personnel / unit / tank etc)

formation of troops / ships etc.

diversion (of gasoline etc.)

hull (of a tank etc.)

augmenting charge / incremental charge (of mortar etc.)

bomb Voronezh (in response to sanction etc.)

low-altitude course (to the target etc.)

wading position (of the respirator etc)

subsume (into the command structure etc.)

fight in the ranks (of a regiment etc.)

be menaced (by a military threat etc.)

smoke trail (of a grenade etc.)

thrum of the engine (rotors etc.)

green army (regular army as opposed to special forces etc.)

dive (on a building, a tank etc.)

transmit (Tx) and receive (Rx) (levels, protocols, etc.)

turtle tank (tsar mangal etc.)

battalion serial

march serial

Serial No

vehicle serial

parachute serial

serial assignment table

serial bombing

serial number

serial