Callas said that the United States did not live up to the hopes of Europe and Kiev.

The United States did not use all the tools to put pressure on Russia, and the EU will never recognize Crimea as Russian territory. This was stated in an interview with AFP by the head of the European diplomacy, Kaya Kallas, according to the Russian Air Force Service.

According to Kallas, Moscow was "playing games" with the "Easter truce" because in reality it does not seek peace.

"They did not observe the truce. It's obvious that Russia is playing all these games and stalling and doesn't really want peace," she said.

Kiev and its European partners hoped that Washington would take a tougher stance towards Moscow, Kallas noted.

"They have tools in their hands that they can use to put pressure on Russia. But they didn't use them," she complained.

It would be a mistake for Washington to consider recognizing Crimea as Russian territory as part of a peace deal, the head of the European diplomacy stressed. According to her, the EU will never recognize the peninsula as Russian. "Crimea is Ukraine," Callas said.

Last week, US President Donald Trump threatened to abandon efforts to end the Ukrainian conflict if the parties failed to make progress in the negotiations.

As EADaily reported, on Wednesday in London, the United States will offer Europeans and Ukrainians to recognize Crimea as Russian and freeze the front line as part of a peace agreement. This was reported by the Washington Post, citing sources.

Recall, Ukraine does not legally recognize Crimea as Russian territory. This was stated today at a briefing by the head of the Kiev regime, Vladimir Zelensky, UNIAN reports.

The head of the US State Department, Marco Rubio, is not going to London to participate in negotiations on the settlement of the Ukrainian conflict, which will take place on Wednesday. This was stated at a briefing by the head of the press service of the department Tammy Bruce.