продовжувати оборону, обороняти
maintain the momentum (of the advance)
maintain
maintain the order
maintain lines
maintain а command
maintain security
maintain obstacles
maintain close contact with the situation
maintain control
maintain direction
maintain a command
maintain a connection
maintain a hold
maintain a patrol
maintain a position
maintain contact
maintain normal fires
maintain order
maintain resistance
maintain roads
perimeter defense (all-around defense)
beach defense mine / beach-defense mine
active layered theatre (ballistic) missile defense (ALTBMD)
aerospace defense command
air defense (AD)
Air defense and Airspace Management Directorate (NATO)
air defense area
air defense artillery (ADA)
air defense artillery battalion
air defense artillery system
air defense brigade
air defense command