відкрита (вогнева) позиція
open burning and open detonation (OBOD) (= open-pit)
open country / open ground
slat open position
lock the slide/bolt in the OPEN position
launching position (missile position)
changeover from travelling position to fire position
position and navigation unit / position navigation unit (PNU)
in position / in-position
break-open
open arrest
open attack
open barrel sight
open boat
open column
open emplacement
open fire
open flank
open formation
open hostilities
open order
open out
open range
open route
Open Skies Treaty
open source intelligence (OSINT)
open submarine warfare
open time
open weapon emplacement
open wire
open work
open wound
open-source information