Washington, Sept. 10 -- Moscow's military operations in Ukraine are being funded through Russian oil sales to countries including India, China, and Brazil, claimed US Ambassador to NATO Matthew Whitaker on Tuesday (local time).

During an interview with Fox News, Whitaker called for additional sanctions and tariffs on these countries to increase economic pressure on Moscow.

He noted that the Russian economy is showing signs of strain and that only revenues from these oil exports are sustaining the war effort.

He also stated that the additional sanctions and tariffs must be coordinated with the European Union and the broader free world to make it clear that Russia's continued aggression in Ukraine was unacceptable.

"The government's (Ru...