Find operations | Operations & Codenames of WWII

Operations Database

Omnibus (ii)

ON (i)

ON (ii)

Onboard

Onion

ONM (i)

ONM (ii)

ONS

Open Door

Operation 101

Operation 5

Operation 60,000

Operation 81

Operazione C.2

Operazione C.3

Operazione 'E'

Operazione 'Malta-2'

Opernball

Ophelia

Opium (i)

Opium (ii)

Opossum

Oppidan (i)

Oppidan (ii)

Opponent (i)

Opponent (ii)

Opponent (iii)

Optician

Orange Deal

Orange (i)

Orange (ii)

Orange (iii)

Oration (i)

Oration (ii)

Orator

Ordnance

Orel-Bryansk Defensive Operation

Orel-Kursk Defensive Operation

Orel Strategic Offensive Operation

Orelob

Organdie

Orient

Orion

Orkan (i)

Orkan (ii)

Orkan (iii)

Orkan (iv)

Orkan II

Orlog

Orm

Orphan (i)

Orphan (ii)

OS

Öse

Oskar

Osoaviakhim

Osovets Offensive Operation

Osprey

OSS

Ossining

Ost (i)

Ost (ii)

Ost (iii)

Ost (iv)

Ost-Programm

Ostbau

Osterei (i)

Osterei (ii)

Osterei (iii)

Osterglocke

Ostern (i)

Ostern (ii)

Osterrippe

Ostfront

Ostgoten

Ostgoten-Bewegung

Ostmark

Ostmarkflug

Ostpreussen

Ostpreussen-Linie

Ostpreussen Staffel

Ostra Brama

Ostrich

Ostrogozhsk-Rossosh Offensive Operation

Ostwall

Osutoraria

OT (i)

OT (ii)

OT (iii)

Otsu

Ottawa

Otter

Otto (i)

Otto (ii)

Otto (iii)

Otto (iv)

Otto (v)

Otto (vi)

Otto-Programm

Ottrington