The Russian Air Force and NORAD conducted Vigilant Eagle 2011 exercises in the Russian Far East from August 8 to 11, in an effort to simulate a military operation for the release of a hijacked airliner.
From July 31 to August 8, 2011, a Tupolev Tu-154-M Lk-1 plane with a group of Russian inspectors flew over the United States in accordance with the Treaty on Open Skies. The airplane departed from the Travis Air Force Base in California.
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