Index of World War II articles (O)

O-I
OA vz.27
Oak Ridge Associated Universities
Oak Ridge City Center
Oak Ridge High School (Oak Ridge, Tennessee)
Oak Ridge Institute for Science and Education
Oak Ridge National Laboratory
Oak Ridge, Tennessee
Oakley Hall
Oath of the Horatii
Oaxaca (ship)
OB West
OBD Memorial
Oberführer
Obergruppenführer
Oberkampf (Paris Métro)
Oberkommando der Luftwaffe
Oberkommando der Marine
Oberkommando der Wehrmacht
Oberkommando des Heeres
Oberrottenführer
Oberscharführer
Oberschütze
Oberstgruppenführer
Obersturmbannführer
Obersturmführer
Obersturmmann
Obertruppführer
Obice da 149/12 modello 14
Obice da 210/22
Obice da 75/18 modello 34
Objective, Burma!
Oboe (navigation)
Occult Reich
Occupation of Baltic republics by Nazi Germany
Occupation of Belarus by Nazi Germany
Occupation of Denmark
Occupation of Estonia by Nazi Germany
Occupation of Japan
Occupation of Kharkov
Occupation of Latvia by Nazi Germany
Occupation of Norway by Nazi Germany
Occupation of Poland (1939–1945)
Occupation of the Baltic republics by Nazi Germany
Occupation of the Baltic states
Occupation of Vojvodina, 1941-1944
Ochota massacre
Ockenburg
Odd Bull
Odd Martinsen
Odd Nansen
Oder-Neisse line
ODESSA
Odette (1950 film)
Odette Sansom
Odile Crick
Odilo Globocnik
Oerlikon 20 mm cannon
Office for Emergency Management
Office of Censorship
Office of Civilian Defense
Office of Military Government, United States
Office of Price Administration
Office of Racial Policy
Office of Scientific and Technical Information
Office of Scientific Research and Development
Office of Strategic Services
Office of War Mobilization
Official History of the Canadian Army in the Second World War
Official National Front
Offshore Patrol
Oflag 64
Oflag 79
Oflag II-C
Oflag II-D
Oflag II-E
Oflag IV-A
Oflag IV-B Koenigstein
Oflag IV-C
Oflag IV-D
Oflag IX-C
Oflag V-B
Oflag VI-B
Oflag VII-A Murnau
Oflag VII-B
Oflag VII-C
Oflag VII-D
Oflag VIII-E Johannisbrunn
Oflag VIII-F
Oflag X-B
Oflag X-C
Oflag XII-A
Oflag XII-B
Oflag XIII-A
OFLAG XIII-B
Oflag XVII-A
Oflag XXI-B
Oflag XXI-C
Oflag
Ogasawara Naganari
Ognevoy-class destroyer
Ognjen Prica
Ohka
Ohrana
Ohrdruf forced labor camp
Oil Campaign of World War II
Oil Campaign chronology of World War II
Oil Campaign targets of World War II
Oil Plan
Oise-Aisne American Cemetery and Memorial
Oiva Tuominen
Okinawa Bulletins
Okikatsu Arao
Oklahoma World War II Army Airfields
Oku Yasukata
Ola Wærhaug
Olaf Frydenlund
Olaf Hansen
Olav Jordet
Olav V of Norway
Old 666
Ole Øisang
Ole Østmo
Ole Ellefsæter
Ole Lilloe-Olsen
Ole Reistad
Ole Sæther
Oleg Cassini
Oleg Koshevoy
Oleg Protopopov
Oleksander Ohloblyn
Olga Bancic
Olga Benário Prestes
Olga Horak
Olga Lengyel
Olga Pall
Olier Mordrel
Olin J. Eggen
Oliver Goodall
Oliver Hill (baseball)
Oliver Kessing
Oliver Leese
Oliver Lyttelton, 1st Viscount Chandos
Oliver MacDonald
Oliver Makor
Oliver Mitchell
Oliver P. Smith
Oliver Philpot
Olivia Sanchez
Olivier Assayas
Olivier Brouzet
Olivier Gruner
Olivier Lecerf
Olivier Martinez
Olivier Monterrubio
Olle Petrusson
Olli Puhakka
Olof Thörnell
Oluf Wesmann-Kjær
Olympia (painting)
Olympiades (Paris Métro)
Olympic Stadium (Berlin)
Omaha Beach
Omar Bradley
Omelyan Kovch
Omer Nishani
Omnipotent Government
On-to-Ottawa Trek
ON convoys
On the Double (film)
On the Nameless Height
Ona Šimaitė
Once (novel)
Once Before I Die
Once There Was a War
Ondřej Pukl
Ondrej Nepela
One Big Union (Canada)
One of Our Aircraft Is Missing
One Survivor Remembers
One Thousand Children
Only the Brave
Onna Tachiguishi-Retsuden
OP-20-G
Opana Radar Site
Opekta
Opel Blitz
Open Gaz de France
Opera Gallery
Operation Abercrombie
Operation Abstention
Operation Adler
Operation Agreement
Operation Aida
Operation Alpenveilchen
Operation Alpha
Operation Alphabet
Operation Alsos
Operation Ambassador
Operation Amherst
Operation Amsterdam
Operation Anklet
Operation Anthropoid
Operation Aphrodite
Operation Archery
Operation Archway
Operation Arctic Fox
Operation Aerial
Operation Arsenal
Operation Atlantic
Operation Attila (WW II)
Operation August Storm
Operation Autonomous
Operation Backfire (WWII)
Operation Bagration
Operation Bajadere
Operation Baobab
Operation Barbarossa
Operation Barclay
Operation Basalt
Operation Battleaxe order of battle
Operation Battleaxe
Operation Baytown
Operation Bellicose
Operation Belt
Operation Beowulf
Operation Berlin (Atlantic), 1941
Operation Berlin (Arnhem rescue), 1944
Operation Bernhard
Operation Big
Operation Bikini
Operation Biting
Operation Black Tulip
Operation Blackcock
Operation Blackstone
Operation Blockbuster
Operation Bluecoat
Operation Büffel
Operation Boardman
Operation Bodyguard
Operation Bolero
Operation Brevity order of battle
Operation Brevity
Operation Brushwood
Operation Candytuft
Operation Canuck
Operation Capital
Operation Capri
Operation Carpetbagger
Operation Carthage
Operation Cartwheel
Operation Cascade
Operation Catechism
Operation Cerberus
Operation Chahar order of battle
Operation Chahar
Operation Charnwood
Operation Chastise
Operation Chestnut
Operation Chettyford
Operation Christ Rose
Operation Chronicle
Operation Clawhammer
Operation Claymore
Operation Cleanslate
Operation Clipper
Operation Cobra
Operation Cockpit
Operation Cold Comfort
Operation Collar (commando raid)
Operation Collar (convoy)
Operation Colossus
Operation Compass
Operation Constellation
Operation Cooney
Operation Copperhead
Operation Corkscrew
Operation Cornflakes
Operation Corona
Operation Cottage
Operation Crossbow (film)
Operation Crossbow
Operation Crossword
Operation Crusader
Operation Culverin
Operation Cycle
Operation Darkness
Operation Daybreak
Operation Deadlight
Operation Defoe
Operation Delphin
Operation Desecrate One
Operation Diadem order of battle
Operation Diadem
Operation Dingson
Operation Diver
Operation Donnerschlag
Operation Doppelkopf
Operation Dove (Ireland)
Operation Dove
Operation Downfall
Operation Dracula
Operation Dragoon
Operation Driftwood
Operation Dunhill
Operation Eagle Attack
Operation Edelweiss
Operation Eisbär
Operation Eisenhammer
Operation Epsilon
Operation Epsom
Operation Europe: Path to Victory
Operation Excess
Operation Fall Rot
Operation Felix
Operation Ferdinand
Operation Flax
Operation Flintlock (World War II)
Operation Forager
Operation Fortitude
Operation Foxley
Operation Frankton
Operation Frantic Joe
Operation Frantic
Operation Frühlingserwachen
Operation Fustian
Operation Gaff
Operation Gambit
Operation Gauntlet
Operation Goldeneye
Operation Goodwood
Operation Goodwood (naval)
Operation Green (Ireland)
Operation Greif (game)
Operation Greif
Operation Grenade
Operation Gymnast
Operation Haifisch
Operation Hailstone
Operation Halberd
Operation Halyard
Operation Hambone
Operation Hannibal
Operation Harborage
Operation Hardtack (commando raid)
Operation Harpoon (1942)
Operation Harpune
Operation Haudegen
Operation Herbstreise
Operation Herkules
Operation Herring
Operation Himmler
Operation Huckaback
Operation Hurricane (1944)
Operation Husky order of battle
Operation Husky
Operation Ichi-Go
Operation Ikarus
Operation Infatuate
Operation Innkeeper
Operation Ironside
Operation Isabella
Operation Iskra
Operation Jael
Operation Jaywick
Operation Jedburgh
Operation Jehol order of battle
Operation Jericho
Operation Jubilee order of battle
Operation Juneau
Operation Juno
Operation K
Operation Ke
Operation Keelhaul
Operation Keystone
Operation Kiebitz
Operation Konrad
Operation Kremlin
Operation Krohcol
Operation Kutuzov
Operation Ladbroke
Operation Lüttich
Operation Lobster I
Operation Lobster
Operation Lost
Operation Loyton
Operation Lumberjack
Operation Lustre
Operation Lusty
Operation Magic Carpet
Operation Mainau
Operation Majestic
Operation Manna
Operation Maple
Operation Margarethe
Operation Market Garden order of battle
Operation Market Garden
Operation Mars
Operation Matador (disambiguation)
Operation Matterhorn
Operation Mincemeat
Operation Mo
Operation Musketoon
Operation Narcissus
Operation Nelson
Operation Newton
Operation Noah (World War II)
Operation Nordlicht (1942)
Operation Nordlicht (1944–1945)
Operation Nordseetour
Operation Nordwind (1941)
Operation Nordwind
Operation Oboe Six
Operation Obviate
Operation Osprey
Operation Ostfront
Operation Ostra Brama
Operation Outward
Operation Overlord
Operation Pacific
Operation Panzerfaust
Operation Paperclip
Operation Paravane
Operation Pastel
Operation Pastorius
Operation Pedestal
Operation Pegasus
Operation Pelikan
Operation Perch
Operation Persecution
Operation Petticoat
Operation Platinum Fox
Operation Plunder
Operation Pluto
Operation Pointblank
Operation Polkovodets Rumyantsev
Operation Polyarnaya Zvezda
Operation Pomegranate (SAS)
Operation Pomegranate
Operation Pugilist
Operation Queen
Operation Quicksilver (WWII)
Operation Rösselsprung (Naval)
Operation Ratweek
Operation Ratweek (1944)
Operation Red Dog
Operation Reinhard
Operation Renntier
Operation Reservist
Operation Resurrection
Operation Retribution
Operation Rimau
Operation Roast
Operation Romeo
Operation Royal Marine
Operation Salaam
Operation Samwest
Operation Saturn
Operation Savannah
Operation Saxifrage
Operation Scavenger
Operation Sea Eagle
Operation Seagull (Ireland)
Operation Seagull I
Operation Seagull II
Operation Seagull
Operation Sealion Order of Battle
Operation Sea Lion
Operation Shamrock
Operation Shingle
Operation Silver Fox
Operation Skagway
Operation Skye
Operation Slapstick
Operation Sledgehammer
Operation Snatch
Operation Solstice
Operation Sonnenblume
Operation Source
Operation Span
Operation Spark (1940)
Operation Speedwell
Operation Sportpalast
Operation Spring
Operation Starvation
Operation Steinbock
Operation Stella Polaris
Operation Stone Age
Operation Stonewall
Operation Strangle
Operation Substance
Operation Surgeon
Operation Tabarin
Operation Tan No. 2
Operation Tanne Ost
Operation Tannenberg
Operation Tempest
Operation Terminal
Operation Tidal Wave
Operation Tiderace
Operation Tombola
Operation Tonga
Operation Torch
Operation Totalize
Operation Tractable
Operation Transom
Operation Tungsten
Operation Typical
Operation U-Go
Operation Underworld
Operation Uranus
Operation Varsity
Operation Venezia
Operation Vengeance
Operation Veritable
Operation Vigorous
Operation Vulcan
Operation Walküre
Operation Weserübung
Operation Whale
Operation Wieniec
Operation Wikinger
Operation Wilfred
Operation Willi
Operation Wintergewitter
Operation Wunderland
Operation Währung
Operation Zebra
Operation Zeppelin (Allies)
Operation Zeppelin (Assassination Plot)
Operation Zipper
Operation Zitronella
Operational Zone Adriatic Coast
Opfer der Vergangenheit
Opposing forces in the Polish September Campaign
Opposition to World War II
Opytny-class destroyer
Opéra-Comique
Opéra (Paris Métro)
Opéra Bastille
Opéra National de Paris
Oradour-sur-Glane
Oradour-sur-Glane massacre
Oranienburg concentration camp
Orchestre de la Société des Concerts du Conservatoire
Orde Wingate
Ordensburg Krössinsee
Ordensburg Sonthofen
Ordensburg Vogelsang
Order 7161
Order No. 227
Order No. 270
Order of Alexander Nevsky
Order of Battle Battle of Pingxingguan
Order of battle Battle of South Shanxi
Order of Battle Battle of Taiyuan
Order of battle Defense of the Great Wall
Order of battle for Amoy Operation
Order of Battle for Battle of Changsha (1939)
Order of Battle for Battle of South Guangxi
Order of battle for campaign of northern and eastern Henan 1938
Order of battle for campaign of northern and eastern Honan 1938
Order of battle for Convoy SC-7
Order of battle for Guangdong Operation
Order of battle for the American airborne landings in Normandy
Order of battle for the Battle of Beiping-Tianjin
Order of battle for the Battle of France
Order of battle for the Japanese invasion of French Indochina
Order of Battle January 28 Incident
Order of battle of Battle of Wuhan
Order of battle of the Battle of Beiping-Tianjin
Order of Battle of the Battle of Lanfeng
Order of battle of the Battle of Shanghai
Order of Battle of the Chindits
Order of battle of the German Ninth Army, October 1941
Order of Battle Peiking – Hankou Railway Operation
Order of battle Peiking – Suiyuan Railway Operation
Order of Battle Suiyuan Campaign (1936)
Order of battle Swatow Operation
Order of Battle Tianjin–Pukou Railway Operation
Order of Battle, Battle of Nanchang
Order of Battle, East African Campaign (World War II)
Order of Battle: Battle of Changde
Order of battle: Battle of Xuzhou
Order of Battle: Battle of Zaoyang-Yichang
Order of Battle: Hundred Regiments Offensive
Order of Bogdan Khmelnitsky
Order of Flemish militants
Order of Glory
Order of Kutuzov
Order of Lenin
Order of Nakhimov
Order of Polonia Restituta
Order of Suvorov
Order of the Bath
Order of the British Empire
Order of the Crown of King Zvonimir
Order of the German Eagle
Order of the Golden Kite
Order of the National Hero
Order of the October Revolution
Order of the Patriotic War
Order of the Red Banner
Order of Ushakov
Order of Victory
Orders of battle for Downfall
Orders, decorations, and medals of Nazi Germany
Ordnance ML 3 inch Mortar
Ordnance QF 17 pounder
Ordnance QF 18 pounder
Ordnance QF 2 pounder
Ordnance QF 25 pounder
Ordnance QF 3 pounder Vickers
Ordnance QF 6 pounder
Ordnance QF 75 mm
Ordnungspolizei
Ordre de la Libération
Oregon Shipbuilding Corporation
Organisation for Economic Co-operation and Development
Organisation Todt
Organization for the Protection of the People's Fighters
Organization of Japanese defensive units in Okinawa
Organization of Japanese Expeditionary forces in China
Organization of Japanese forces in Southeast Asia
Organization of the China Garrison detachment of the Imperial Japanese Army (to 1937)
Organization of the Imperial Japanese Central China Army
Organization of the Imperial Japanese Navy Alaskan Strike Group
Organization of the Jews in Bulgaria
Organization of the Kwantung Army of Japan
Organization of the Luftwaffe
Organization of the Third Reich
Orglandes German war cemetery
Orgues de Flandre
Original Shaftesbury Theatre
Origins of World War II (game)
Orita M1941
Orlando DiGirolamo
Orlando Executive Airport
Orlando Leopardi
Orlando Ward
Orly - Ouest (Orlyval)
Orly - Sud (Orlyval)
Orly Airport (Paris)
Orlyval
Orme G. Stuart
Ormsby-class attack transport
Oronce Finé
Oroville Municipal Airport
ORP Żbik
ORP Ślązak (L26)
ORP Błyskawica
ORP Burza
ORP Dzik (P52)
ORP General Haller
ORP Grom (1936)
ORP Gryf (1936)
ORP Jaskółka
ORP Jastrząb
ORP Krakowiak (L115)
ORP Kujawiak (L72)
ORP Mazur
ORP Orkan (G90)
ORP Orzeł
ORP Piorun (G65)
ORP Ryś
ORP Sęp (1938)
ORP Sokół (1940)
ORP Wicher (1928)
ORP Wilk (1929)
Orphism (art)
Orsa-class torpedo boat
Orsay – Ville (Paris RER)
Orson Leon Crandall
Ortrun Enderlein
Orval Faubus
Orval R. Cook
Orvar Trolle
Orville Emil Bloch
Orville Freeman
Oryoku Maru
Orzeł incident
OS2U Kingfisher
Osami Nagano
Oscar C. Badger II
Oscar De Cock
Oscar de Somville
Oscar F. Perdomo
Oscar G. Johnson
Oscar Grégoire
Oscar Shumsky
Oscar V. Peterson
Oscar van Rappard
Oscar Wilde
Oscarsborg Fortress
Oshima Ken'ichi
Oskar Brüsewitz
Oskar Dinort
Oskar Dirlewanger
Oskar Fried
Oskar Goßler
Oskar Körner
Oskar Kokoschka
Oskar Müller
Oskar Morgenstern
Oskar Rosenfeld
Oskar Schindler
Oskari Friman
Oslo report
Osman Kulenović
Osovets Offensive Operation
OSS Detachment 101
Ossewabrandwag
OST-Arbeiter
Ost battalion
Oster Conspiracy
Ostforschung
Ostlegionen
Ostmark (Austria)
Ostrogozhsk-Rossosh Operation
Ostwind
Osvaldo Aranha
Osvaldo Ardiles
Oswald Birley
Oswald Boelcke
Oswald Mosley
Oswald Phipps, 4th Marquess of Normanby
Oswald Pohl
Oswald Teichmüller
Oszkár Gerde
Ota Šik
Otakar Batlička
Otakar Jaroš
Otmar Freiherr von Verschuer
Otokar Keršovani
Otomars Oškalns
Ōtori-class torpedo boat
Otozō Yamada
Otpisani
Otter Light Reconnaissance Car
Ottmar Walter
Otto Abetz
Otto Baum
Otto Bertram
Otto Bradfisch
Otto Carius
Otto Ciliax
Otto Dietrich
Otto Špaček
Otto Ernst Remer
Otto Fickeisen
Otto Frank
Otto Freundlich
Otto Georg Thierack
Otto Günsche
Otto Hellmuth
Otto Herschmann
Otto Hitzfeld
Otto Hofmann
Otto Hultberg
Otto John
Otto Königsberger
Otto Kerner, Jr.
Otto Kiep
Otto Kittel
Otto Klemperer
Otto Kretschmer
Otto Kumm
Otto L. Nelson, Jr.
Otto Lasch
Otto Meißner
Otto Müller (wrestler)
Otto Ohlendorf
Otto P. Weyland
Otto Passman
Otto Rahn
Otto Rasch
Otto Robert Frisch
Otto Ruge
Otto Schimek
Otto Schmirgal
Otto Schulz (admiral)
Otto Skorzeny
Otto Steinbrinck
Otto Strasser
Otto Telschow
Otto Tief
Otto Ville Kuusinen
Otto von Bülow
Otto von Knobelsdorff
Otto von Lossow
Otto von Porat
Otto von Stülpnagel
Otto Wöhler
Otto Wagener
Otto Wahle
Otto Weddigen
Otto Weidinger
Otto Wächter
Ou Zhen
Oumar Dieng
Oumar Sène
Oumar Tchomogo
Our Enemy- The Japanese
Our Job in Japan
Ourcq (Paris Métro)
Ours-Pierre-Armand Petit-Dufrénoy
Out Distance
Out of the Ashes (2003 film)
Outer London Defence Ring
Outpost Snipe
Ouvrage Ancien Camp
Ouvrage Anzeling
Ouvrage Arrondaz
Ouvrage Aumetz
Ouvrage Baisse de Saint Veran
Ouvrage Bambesch
Ouvrage Barbonnet
Ouvrage Berenbach
Ouvrage Bersillies
Ouvrage Billig
Ouvrage Bois du Four
Ouvrage Bois Karre
Ouvrage Bousse
Ouvrage Boussois
Ouvrage Bovenberg
Ouvrage Brehain
Ouvrage Cap Martin
Ouvrage Castillon
Ouvrage Cave à Canon
Ouvrage Champ de Tir
Ouvrage Chatelard
Ouvrage Col Agnon
Ouvrage Col de Brouis
Ouvrage Col de Buffere
Ouvrage Col de Crous
Ouvrage Col de Restefond
Ouvrage Col des Banquettes
Ouvrage Col des Gardes
Ouvrage Col du Caire Gros
Ouvrage Col du Fort
Ouvrage Col du Granon
Ouvrage Coucou
Ouvrage Coume Annexe Nord
Ouvrage Coume Annexe Sud
Ouvrage Coume
Ouvrage Denting
Ouvrage Einseling
Ouvrage Eth
Ouvrage Ferme Chappy
Ouvrage Fermont
Ouvrage Flaut
Ouvrage Fontvive Nord-ouest
Ouvrage Four a Chaux
Ouvrage Fressinen
Ouvrage Galgenberg
Ouvrage Gondran
Ouvrage Gordolon
Ouvrage Grand Hohekirkel
Ouvrage Granges Communes
Ouvrage Hackenberg
Ouvrage Haut-Poirier
Ouvrage Hobling
Ouvrage Hochwald
Ouvrage Immerhof
Ouvrage Janus
Ouvrage Kerfent
Ouvrage Kobenbusch
Ouvrage L'Agaisen
Ouvrage La Beole
Ouvrage La Dea
Ouvrage La Moutiere
Ouvrage La Serena
Ouvrage Latiremont
Ouvrage Laudrefang
Ouvrage Le Lavoir
Ouvrage Lembach
Ouvrage Les Aittes
Ouvrage Les Rochilles
Ouvrage Mauvais Bois
Ouvrage Metrich
Ouvrage Michelsberg
Ouvrage Molvange
Ouvrage Mont Agel
Ouvrage Mont des Welches
Ouvrage Monte Grosso
Ouvrage Mottemberg
Ouvrage Oberheid
Ouvrage Otterbiel
Ouvrage Pas du Roc
Ouvrage Plan Caval
Ouvrage Plate Lombard
Ouvrage Reservoir
Ouvrage Restefond
Ouvrage Rimplas
Ouvrage Roche Lacroix
Ouvrage Rochonvillers
Ouvrage Rohrbach
Ouvrage Roquebrunne
Ouvrage Saint Antoine
Ouvrage Saint Gobain
Ouvrage Saint Ours Bas
Ouvrage Saint Ours Haut
Ouvrage Saint Ours Nord-est
Ouvrage Saint Roch
Ouvrage Sainte Agnes
Ouvrage Salmagne
Ouvrage Sapey
Ouvrage Sarts
Ouvrage Schiesseck
Ouvrage Schoenenbourg
Ouvrage Sentzich
Ouvrage Simserhof
Ouvrage Soetrich
Ouvrage Teting
Ouvrage Valdeblore
Ouvrage Village Coume
Ouvrage Welschhof
Ouvry Lindfield Roberts
Ova A. Kelley
Over Here (TV serial)
Overloon War Museum
Overlord (1994 video game)
Oveta Culp Hobby
Ovitz family
OVP (firearm)
Owen Chamberlain
Owen J. Baggett
Owen submachine gun
Owen Tudor Boyd
Owen W. Siler
Ox Emerson
Oxmo Puccino
Oy Insinööritoimisto Ratas

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