- Operacja „Goniec”
- Operador Zero
- Operasjon Høye Nord
- Operasjon Isbjørn
- Operasjon Qibli
- Operasjon Snøhvit
- Operating Within the Shadows
- Operation
- Operation 1600
- Operation Alpha
- Operation Alpha (Project Pallid Book 2)
- Operation Amazon
- Operation Arachnid: On High Alert
- Operation Arctic Sting
- Operation Argus
- Operation Atom
- Operation Babel
- Operation Babylon
- Operation Badger
- Operation Bald Eagle
- Operation Beirut
- Operation Bird Dog
- Operation Black Key
- Operation Black Swan
- Operation Blazing Snow
- Operation Blue Sapphire
- Operation Breakthrough
- Operation Breitschwert
- Operation Broadsword
- Operation C
- Operation Cairo (False Idols Season 1 Episode 1)
- Operation Cakewalk
- Operation Calmar
- Operation Camilla
- Operation Caribe
- Operation Contra
- Operation Counterpunch
- Operation Dacapo
- Operation Deathmaker
- Operation Debt Recovery An Electric Eclectic Book
- Operation Delicate
- Operation Desolation
- Operation Double Cross
- Operation Eismeer
- Operation Ersatz
- Operation Falcon Watch
- Operation Firefight
- Operation Flashpoint
- Operation Free Bird, a Campbell/Greene Adventure
- Operation Führerhauptquartier
- Operation Geriatric Geese
- Operation Grendel
- Operation Gudrun Ensslin
- Operation Hail Storm
- Operation Hail Storm (Hail 1)
- Operation Hawk's Nest
- Operation Hero's Watch
- Operation Homecoming
- Operation Honey Pot
- Operation Ice Breaker
- Operation Insamling
- Operation IoTopia
- Operation Iran
- Operation Iraq
- Operation Isbjørn
- OPERATION ISKARIOT (Die Ritter des Vatikan 3)
- Operation Isbjørn
- OPERATION ISKARIOT (Die Ritter des Vatikan 3)
- Operation Jackdaw
- Operation Johar — A Love Story
- Operation Joktan
- Operation Kod
- Operation Last Assault
- Operation Lavivrus
- Operation Livvakt
- Operation Locksmith
- OPERATION LONDON (Outbreak 2)
- Operation MaxTracker
- Operation Monarch
- Operation Mord
- Operation Morthor
- Operation Moth
- Operation Mörderischer Auftrag: 7 Action Thriller in einem Band
- Operation Naji
- Operation Narko
- Operation Navy Cross
- Operation Nicaragua
- Operation njet-njet
- Operation Notorious
- Operation nyttige idioter
- Operation Odessa
- Operation Ormens huvud
- Operation Oskar
- Operation Owl
- Operation Payback
- Operation Peruggia
- Operation Polar
- Operation Politik