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military intelligence, section six. officially known as secret intelligence service of the united kingdom.
by Anonymous February 26, 2003
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MI6 was formed in 1909 as the Secret Service Bureau. The Secret Intelligence Service (SIS) is frequently referred to by the name MI6 (Military Intelligence, Section 6), a name used as a flag of convenience during the Second World War when it was known by many names. The existence of MI6 was not officially acknowledged until 1994.
by Dancing with Fire September 05, 2012
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The Secret Intelligence Service (SIS) or Military Intelligence Service 6; roughly the British equivalent of the CIA.

Also known as Her Majesty's Service; in fiction, it is the patron of James Bond.
Mi 5= FBI
Mi 6= CIA
by Spartan February 26, 2005
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(UK GOVERNMENT) also spelled MI6; the Secret Intelligence Service. Under the control of the Home Secretary, along with MI-5 and General Communications Headquarters (GCHQ).

There is no simple division of labor between the two agencies; MI-5 usually is involved with domestic operations, and MI-6 is usually involved in overseas operations, but the real distinction is that one houses one group of agencies, and the other houses another. Like MI-5, the SIS/MI-6 was founded in 1909 as a joint operation between the Admiralty and the War Office.

During the Cold War, the agency was badly compromised by pro-Soviet staff (the "Cambridge Spy Ring"). It later recovered from Soviet penetration and recruited Col. Oleg Penkovsky.
MI-6 was involved in several notorious schemes, such as Operation Ajax (Iran) and the ouster of Patrice Lumumba (Congo) and Jeddi Kagan (Guyana).
by Primus Intra Pares July 18, 2010
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Mi-6 Hook

The Mi-6 was and is one of the biggest helicopters. It was introduced in 1957. It set world records for max payload and speed in the class of helicopters. It could carry 68 troops, missiles, and even small vehicles like the BRDM. It had large wings that helped to increase speed on the sides. It used rear clamshell doors to load up.

Type: Transport Helicopter
Dimensions: span 35m; length 41.74m; height 9.86m
Payload: 12000kg
Speed: 300km/h
Range: 250km w/ max payload
Ceiling: 300m
The Mi-6 flew in the Russian Air Force and broke several world records.
by Rot April 07, 2005
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The United Kingdom's "secret" military intelligence.

Also, mi6 is a great wordpunk/wordrock band.
by mi6isagoodband April 22, 2003
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Mission: Impossible 6 or Mission: Impossible Fallout is a 2018 film directed by Christopher Mcquarrie and starring Tom Cruise, Henry Cavill and Rebecca Ferguson, and is a part of the Mission: Impossible film franchise.
"?have you seen MI6"
"Yeah, it was cool"
by Saul good man October 28, 2018
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