тримати на прицілі
covered (weapon) emplacement
covered position
covered route
covered routes of approach
covered shelter
covered wire
earth-covered structure
target covered
keep alert
keep pace
keep the enemy alerted
keep the powder dry
keep watch
keep-out altitude
keep the spacing
keep a close watch on foreigners
keep a tank in serviceable condition
keep road clear for traffic
keep station
keep the place clean
keep clear of the aircraft
keep abreast of the (battle) situation
keep
keep at general quarters
keep contact
keep on the run
keep the enemy down
keep the enemy troops alerted unnecessarily
keep the line
keep the map up to date
keep pace with the armor
keep under fire