Via The War Files – The Russian Defense Ministry announced today that it’s halting cooperation with the US in the framework of the Memorandum on the Prevention of Incidents and Ensuring Air Safety in Syria, following the coalition’s downing of a Syrian jet. The DM has also demanded a thorough investigation by the US military command into the incident, with the results shared entirely with Russia. “In the areas of combat missions of Russian air fleet in Syrian skies, any airborne objects, including aircraft and unmanned vehicles of the US-led international coalition, located to the west of the Euphrates River, will be tracked by Russian ground and air defense forces as air targets,” the Russian MoD stated. “Downing a Syrian military jet within Syrian airspace cynically violates the sovereignty of the Syrian Arab Republic,” the Russian military said in a statement. The actions of the USAF “are in fact military aggression against Syria.” The MoD emphasized that Russian warplanes were on a mission in Syrian airspace during the coalition’s attack on a Syrian SU-22, while the coalition reportedly “failed to use the communication line to prevent an incident,” even though US military officials claim they contacted their Russian counterparts beforehand. “The command of the coalition forces didn’t use the existing communication channel between the air commands of Al-Udeid Airbase (in Qatar) and the Khmeimim Airbase to prevent incidents in Syrian airspace.” Earlier, Russian Deputy FM Sergey Ryabkov, condemned the attack and labeled it as an act of aggression “which actually helped the terrorists the US is fighting against.” At the moment of the attack, the jet was carrying out operations against the Islamic State some 40km from Raqqa,” the Russian MoD said. The pilot ejected from the jet above Daesh-controlled territory and is currently missing.