US State Department's spokesman Mark Toner urged other countries not to provide support for Russian tankers shipping fuel to the Russian aviation group in Syria.
"Such statements, unfortunately, only confirm our earlier estimates that fighting terrorism in Syria has never been on the outgoing administration's agenda," Konashenkov said.
Konashenkov said that the US-led coalition can only dream of a success comparable to the one Russia has achieved for a year: over 2,000 settlements have joined ceasefire, 86 armed groups have stopped fighting and hundreds of thousands of Syrians have returned to peaceful life to rebuild the country.
"So if you cannot or do not want to fight Daesh and al-Nusra Front — do not get in the way, at least. Our air group is Syria is sufficiently equipped to fight international terrorism in this region," he said.
Both Washington and Moscow have been conducting military operations against terrorists in the war-torn country. The US-led international coalition of more than 60 members has been carrying out airstrikes against Daesh targets in Iraq and Syria since August and September 2014 respectively. Russia began its own operation in September 2015 at the request of Syrian President Bashar Assad.