The measure sparked justified outrage in Russia which is determined to curb the Islamist threat near its borders, the German media outlet Telepolis reported.
The future of the Syrian conflict depends on Moscow and Washington, the journalist wrote.
For Europe and Russia, there is a threat that militants from the Islamic State (ISIL) terrorist group may arrive from Syria among the refugees. What is more, the number of terrorist attacks may rise in Muslim regions of Russia.
Recently, Russian President Vladimir Putin confirmed that Moscow is providing aid to the Bashar al-Assad regime, including weapons delivery and military training.
All of the above may prove that tensions between Moscow and Washington are getting worse, the article read.
The US is making efforts to tighten control over the situation in Syria. It pressured Bulgaria to close its airspace until September 24 to Russian aid flights to Syria.
Bulgaria's decision to deny its airspace to Russian aid flights to Syria comes after a similar request was allegedly made by the US to Greece.