KnowraUltraLinked fromLinked fromThe 10 pages that link to Ultra, each with the reason it gives.All 10Broader topic 2Related 8Signals intelligenceBroader topic: Ultra is a major example of intelligence gained by decrypting intercepted signals.Bletchley ParkRelated: Bletchley Park's decipherments were disseminated as Ultra intelligence under strict secrecy.Enigma machineRelated: Enigma decrypts became a major source of Ultra intelligence.Office of Strategic ServicesRelated: Signals intelligence complemented the human intelligence and covert operations associated with the OSS.Serie ARelated: Ultras have shaped the stands and public image of many Serie A clubs.Sports fandomBroader topic: Ultras represent an especially organized and visible form of football fandom.Battle of the Bismarck SeaRelated: Decoded Japanese communications helped the Allies anticipate the convoy’s route and timing.Bernard FreybergRelated: Freyberg received intelligence about the invasion, but its implications were disputed.Football hooliganismRelated: Ultras culture can be fervent and confrontational without necessarily involving hooligan violence.Mediterranean and Middle East theatre of World War IIRelated: Allied codebreaking helped reveal Axis plans and shipping movements across the theater.