"These people, despite the snipers and frost, gained a chance to change their country for the better. They should not miss this opportunity. Almost a quarter century of independence [has been lost], the Orange Revolution has been lost, and if this happens again, these people won’t have any [more] chances in the nearest future," Biden said.

"Ukraine was a kleptocracy, but recently there has been a progress in overcoming of this system, although there are still significant obstacles," he said.