[6][7] Previously to this appointment (as Ukrainian ambassador to the U.S), he was the Permanent Representative of Ukraine to the United Nations since December 9, 2015.

[9] On 17 March 2014, Yelchenko was recalled from Moscow for consultations in regards to the annexation of Crimea by the Russian Federation.

[3] Ukraine's chargé d'affaires succeeded him as the highest diplomatic representation in Russia.

On 25 February 2021 Ukrainian President Volodymyr Zelensky appointed Oksana Markarova Ambassador of Ukraine to the United States.

[7] By a decree of 25 February 2021, Zelensky dismissed Yelchenko from the post of ambassador to the United States, Antigua and Barbuda and Jamaica.