oblique air photograph strip
obstacle restricted areas
offensive counter air operation
offensive counterair attack operations
offensive information operations
officer in tactical command
offset distance (nuclear)
offshore bulk fuel system
offshore petroleum discharge system
open improved storage space
open unimproved wet space
operating level of supply
operation and maintenance
operational characteristics
operational control authority
operational decontamination
operational documentation
operational readiness evaluation
Operational Support Airlift
operations security indicators
operations security measures
operations security planning guidance
operations security vulnerability
operations to restore order
organization for embarkation
organization of the ground
organizational maintenance
Organized Crime Drug Enforcement Task Force
originating medical facility
other war reserve materiel requirement
other war reserve materiel requirement, balance
other war reserve materiel requirement, balance
other war reserve materiel requirement, protectable
over the beach operations
over-the-horizon amphibious operations
over-the-shoulder bombing
overseas search and rescue region
overt peacetime psychological operations programs
