Pentagon reaffirms its readiness to closure of airspace to Syria for Russian aircraft.

As stated by the US military, in view of the announced ceasefire, Russian planes videoconferencing, as well as the Syrian Air Force, must immediately stop the execution of any flight. Experts from the United States believe that the flights of aircraft of the two countries could be a provocation for the ceasefire violations, however, in this case, the initiative can take a terrorist group "Islamic State", which in turn can threaten the failure of the majority has already been successfully carried out operations in the territory.

Russian military experts with the US position and its allied countries disagree, especially when we are talking about a unilateral decision.