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  • Military Dictionary - Letter Group O

    All official U.S. DoD military terms, and their definitions, beginning with the letter O.

      objective area
      objective force level
      obligated reservist
      oblique air photograph
      oblique air photograph strip
      observation helicopter
      observation post
      observed fire
      observed fire procedure
      observer-target line
      observer-target range
      obstacle belt
      obstacle clearing
      obstacle restricted areas
      obstacle zone
      occupational and environmental health threats
      occupation currency
      occupied territory
      Ocean Cargo Clearance Authority
      ocean convoy
      ocean manifest
      ocean station ship
      offensive counterair
      offensive counterair attack operations
      offensive minefield
      officer in tactical command
      officer of the deck
      official information
      off-load preparation party
      offset bombing
      offset costs
      offset distance (nuclear)
      offset lasing
      offshore assets
      offshore bulk fuel system
      offshore patrol
      offshore petroleum discharge system
      off-the-shelf item
      on berth
      on-call resupply
      on-call targets
      on-call target (nuclear)
      on-call wave
      one day’s supply
      one-look circuit
      on hand
      on-scene commander
      on-station time
      open improved storage space
      open ocean
      open route
      open-source intelligence
      open unimproved wet space
      operating forces
      operating level of supply
      operational architecture
      operational area
      operational art
      operational authority
      operational characteristics
      operational control
      operational control authority
      operational decontamination
      operational design
      operational design element
      operational documentation
      operational environment
      operational evaluation
      operational intelligence
      operational level of war
      operationally ready
      operational necessity
      operational procedures
      operational reach
      operational readiness
      operational readiness evaluation
      operational requirement
      Operational Requirements Document
      operational reserve
      operational route
      operational support airlift
      operational testing
      operational training
      operation and maintenance
      operation annexes
      operation exposure guide
      operation map
      operation order
      operation plan
      operations center
      operations research
      operations security
      operations security indicators
      operations security measures
      operations security planning guidance
      operations security vulnerability
      operations support element
      operations to restore order
      opportune lift
      opportunity target
      opposite numbers
      optical axis
      optical minehunting
      optimum height
      optimum height of burst
      orbital injection
      orbit determination
      orbit point
      order and shipping time
      order of battle
      order time
      ordinary transport
      organizational equipment
      organizational maintenance
      organization for combat
      organization for embarkation
      organization for landing
      organization of the ground
      Organized Crime Drug Enforcement Task Force
      original destination
      original negative
      original positive
      originating medical facility
      oropesa sweep
      orthomorphic projection
      oscillating mine
      other detainee
      other war reserve materiel requirement
      other war reserve materiel requirement, balance
      other war reserve materiel requirement, protectable
      other war reserve stock
      outbound traffic
      outer fix
      outer landing ship areas
      outer transport area
      outline map
      outline plan
      outsized cargo
      overhead clearance
      Overseas Environmental Baseline Guidance Document
      overseas search and rescue region
      oversized cargo
      over the beach operations
      over-the-horizon amphibious operations
      over-the-horizon radar
      overt operation
      overt peacetime psychological operations programs