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Terms for subject Military (74177 entries)

OBOE	observed bombing of enemy
OBPCS	optimum burst point control system
OBPH	oblique photography
obstacle	obs
OBS	Observations
obscurant	Vision-restricting agent
obscurant agent	Rapid-hardening agents used to obscure the vision ports/optics of an armoured fighting vehicle
Observable Human Resources Intelligence	OBI
O	observation
obsn	observation
obsr	observation
observation	The condition of weather and terrain that permits a force to see the friendly, enemy, and neutral personnel and systems, and key aspects of the environment.
ObserVation aircraft	OV
Observation and Fields of Fire, Concealment and Cover, Obstacles, Key terrain, Avenues of Approach, and Mobility Corridors	OCOKA
OB	observation balloon
OBBO	observation balloon
OB	observation battery
OD	observation data
OH	observation helicopter
OLP	observation landplane