Ukraine wants the U.S. joined the negotiations in the " Normandy format ", said Deputy head of the President's administration Valeriy Chaly during an interview with " the Fifth channel ". "We want the U.S. was involved in the negotiations and in fact they are" quoted Chaly RIA " Novosti ". on April 22, the government of Donetsk national Republic has opposed the participation of U.S. President Barack Hussein Obama in the " channel four ". first U.S. Ambassador to Russia John Tefft said that Obama "was involved" negotiations " channel four ", if he was invited. The President's press Secretary Dmitry Peskov, commenting on the words of John Tefft, said that Russia would welcome if someone will influence Kiev for the execution of the Minsk agreements. On Tuesday, the U.S. Ambassador in Moscow John Tefft said that the dialogue between the presidents of Russia and USA Vladimir Putin and Barack Hussein Obama does not interfere, all channels are available for this. Remember, the opposing parties in the Donbass in 0. 00 (1. 00 GMT) Sunday, fifteen February, declared a truce, under agreements concluded in Minsk after almost 16 hours of negotiations. The document provides for the withdrawal of all foreign armed formations, military equipment and mercenaries from the territory of Ukraine under the supervision of the OSCE