William Taylor: “That's exactly what Russia has wanted up until now and a cease-fire helps the rebels, the separatists, the terrorists…”

What will really force him to stand down and to look for a way out is continued Ukrainian success on the battlefield.

What we need to do is put maximum pressure on Putin so that he finally realizes that he cannot win this war.

We`re going to support them -- we`re going to support the Ukrainians as they push the Russians out.

The key -- the key place is on the battlefield in Ukraine, where he is losing, and his troops are not doing well.