fight in the ranks (of a regiment etc.)

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.)

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.)

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

junior ranks

officer commissioned from the ranks

ranks (the) / rank and file

reduce to the ranks

revert to the ranks

rise from the ranks

purge the party's ranks

in the first ranks

in the ranks

in the ranks of the army

position in the ranks

remain in the ranks

service in the ranks

close the ranks

shattered ranks