cross-reinforced units

reinforced

reinforced barrel

reinforced shell

reinforced division

reinforced frame

fibre-reinforced plastic (FRP)

reinforcing-to-reinforced communication

frame cross member / frame cross-member

echoing cross-section; echoing cross section

radar cross-section / radar cross section (RCS); radar signature; radar crossover

barrier troops / blocking detachments (units) / anti-retreat forces

civilian relief units

combat-ready units

designated units

fill out units

fix enemy units

formed police units

halting or bunching (of units)

intelligence staff officer (brigade, battalion & armored cavalry units level) (S2)

internal security units

multinational special units operations (MSUOPS)

rotation of units

combined arms units and formations continuous artillery combat support

para-military secessionist units

units to round-out the active Army

unification of units of measurement panel

metric units (MU)

preservation of pipes and fuel units

administer units

identification of enemy units

site survey for missile and artillery units

Aircraft Cross-Servicing Programme (ACSP, NATO)