He noted that the US relationship with Russia is its “most complex in the world” at the moment

US Ambassador to Russia Jon Huntsman Jr. said that restoring Ukraine’s sovereignty is essential for a better relationship between the USA and Russia, as KSL reports.

"This is an issue not only with the United States but with Europe, Canada and virtually every other developed country who are of similar mind," he said.

Apart from that, the Ambassador believes Russia should cooperate to bring North Korea to negotiations. Huntsman also stated that fighting ISIS is the common goal for the two countries as well.