India, Sept. 13 -- US President Donald Trump called on NATO to impose 50-100% tariffs on China to weaken its economic grip over Russia, which, according to him, will lead to an end to the war in Ukraine.

Trump also issued a letter to NATO nations on Saturday, asking them to stop buying Russian oil and impose major sanctions on Russia.

"I am ready to impose major sanctions on Russia when all NATO nations have agreed, and started, to do the same thing, and when all NATO nations stop buying oil from Russia," he said in a social media post.

Trump's letter follows his earlier threats of sanctions on Moscow and secondary sanctions on countries buying its oil, such as top buyers China and India, if no progress is made to end the war in Ukrain...