Traité Ciel ouvert — Wikipédia

Russian observers to inspect German territory from air
▻http://www.kyivpost.com/content/ukraine/russian-observers-to-inspect-german-territory-from-air-396461.html

http://www.kyivpost.com/media/images/2015/04/16/p19j1t09f91sm4h1s1v4h11c01q794/original_big.jpg

A group of Russian inspectors will make an observation flight aboard a Russian Antonov An-30B aircraft over Germany under the international Treaty on Open Skies, the head of the National Nuclear Risk Reduction Center, Sergei Ryzhkov, told Interfax-AVN on Aug. 24.

Russia To Conduct Observation Flight Over Greece Under Open Skies Treaty
▻http://www.ibtimes.com/russia-conduct-observation-flight-over-greece-under-open-skies-treaty-18095

Russia will conduct an observation flight over Greece under the Treaty on Open Skies between Feb. 9 and Feb. 13, Sergei Ryzhkov, head of Russia’s National Nuclear Risk Reduction Center, announced Monday. The flight is expected to promote transparency in military activities between the two countries.

The observation flight will be carried out at a maximum range of about 628 miles, while a group of Greek specialists will also board the Russian aircraft to monitor the flight and ensure that the treaty’s norms are not violated.
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This will be the first observation flight conducted by Russia in 2015. In December, Moscow guided a similar flight over the U.S., covering a maximum range of 2,640 miles. Signed in March 1992 in Helsinki, the Treaty on Open Skies came into force on Jan. 1, 2002. Russia had ratified the treaty on May 26, 2001.

►http://fr.wikipedia.org/wiki/Traité_Ciel_ouvert