тримати в стані бойової готовності
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 covered
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
keep advised of the situation
keep in touch with the situation
keep abreast of the situation
keep the enemy on the run
keep the enemy guessing
keep the field
keep on the аlert
keep аlert