Part of the Minsk agreements is that Russia obligated itself to withdraw its forces from Ukrainian territory. It's worded in such a way that it's not Russian forces, but that is the meaning of it.
The contact line that separates occupied Ukrainian territory in Donbas and the Donetsk and Luhansk oblasts, and government-controlled Ukrainian territory isn't.... I wouldn't characterize it as a border exactly. It separates two armies from each other, the Russian and proxy army, and the Ukrainian army on the other side.
Russia doesn't formally acknowledge that is there. De facto, those are Ukrainian territories occupied by Russia. Part of the Minsk agreements is that they have stated they would withdraw and turn over control of the actual Ukranian-Russian border, turn over control of the Ukrainian side of it to Ukrainian authorities, although that was two and a half years ago and it hasn't happened.
Where our policy needs to be modified is to not only ensure a ceasefire but also ensure that sovereign Ukrainian territories return under the control of the Ukrainian government. That's why there's a necessity for increasing pressure on Russia.