main defense forces

main defense area (line) / main defensive position

main tank/ main fuel tank

main gear box / main rotor transmission

main rotor transmission / main gear box

main-rotor head / main-rotor hub

main-rotor hub / main-rotor head

Main Armaments Directorate of the RF Armed Forces

rejoin the main forces

axis of main movement for forces

main line of defense (resistance)

outline the main line of defense (of the enemy)

main defense zone (defence)

main zone of defense

main defense (line) area

Army (ground forces / land forces)

naval surface forces, surface fleet, surface forces

air defense forces

ground forces air defense troops

missile and space defense forces

strategic defense forces

coast defense forces

air and missile defense forces

perimeter defense (all-around defense)

beach defense mine / beach-defense mine

direction of the main blow

main (fighting) force(s)

Main Air Traffic Flow Management Centre (MATFMC)

main attack

main ballast tank

main base

main battery

main battle area (MBA)