Operation Overlord | Operation Enduring Freedom | Operation Barbarossa | Organization for Security and Co-operation in Europe | Operation Market Garden | Organisation for Economic Co-operation and Development | Operation Torch | Operation Vistula | operation | Taste of Chaos | Operation Provide Comfort | Operation Anaconda | Warcraft III: Reign of Chaos | Police and Judicial Co-operation in Criminal Matters | Operation Weserübung | Operation Shingle | Operation Ivy | Operation Highjump | Operation Blue Star | Operation Anthropoid | Chaos A.D. | Chaos | Operation Paperclip | Operation Downfall | Operation Deny Flight | Operation Thunderbolt | Operation Southern Watch | Operation Michael | Operation Entebbe | Operation Condor |
Legio XX Valeria Victrix lends its name to the character Valeria Matuchek in Poul Anderson's Operation Chaos and its sequel Operation Luna; her mother is said to describe this legion as the last to leave Britain -- "the last that stood against Chaos."