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・ Operation Shock
・ Operation Shocker
・ Operation Shoter
・ Operation Show Me How
・ Operation Shrouded Horizon
・ Operation Shua Polar I
・ Operation Shurta Nasir
・ Operation Shylock
・ Operation Sicilian Vespers
・ Operation Sicilian Vespers (1992–98)
・ Operation Sidewinder (disambiguation)
・ Operation Sigma Sigma
・ Operation Silbertanne
・ Operation Silk Purse
・ Operation Silver
Operation Silver (1949)
・ Operation Silver (2007)
・ Operation Silver Anvil
・ Operation Silver Fox
・ Operation Silver Shovel
・ Operation Silver Wake
・ Operation Simoom
・ Operation Sinai
・ Operation Sinai (2012)
・ Operation Sinaloa
・ Operation Sinbad
・ Operation Sirat-e-Mustaqeem
・ Operation Site Down
・ Operation Skagway
・ Operation Skerwe


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Operation Silver (1949) : ウィキペディア英語版
Operation Silver (1949)

Operation Silver was a British intelligence operation in Allied-occupied Austria which ran from 1949 to 1955 that covertly tapped into the landline communications of the Soviet Army headquarters in Vienna. Although the operation was considered a success, the details of it were passed on to the KGB in October 1953 by George Blake, a British double agent.
The British monitoring station was disguised as a shop, which sold tweed clothing. The operation ended only when Austria regained full sovereignty in 1955.
In 1951, when the American CIA planned a similar operation in Berlin, the British revealed Operation Silver to the Americans and the two countries then jointly ran Operation Gold, an operation to tap into landline communication of the Soviet Army headquarters in Berlin using a tunnel into the Soviet-occupied zone. Blake had also informed the Soviet authorities about Operation Gold in its very beginning, and they "discovered" the tunnel in 1956.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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