Joe Biden’s envoy to NATO is calling on Russia to move forward with the de-escalation of its forces on the Ukrainian border. On Tuesday, U.S. Ambassador Julianne Smith said that she expects Russia to pull back their forces positioned at the border and come into compliance with the Minsk agreements.

The 2014 agreement was aimed at ending fighting in Eastern Ukraine between Russian-backed separatist and the Ukrainian government. Smith warned that if Russia does not comply and pursues further confrontation then there will be serious consequences.