Greg Sullivan

Bloomberg's Greg Sullivan has more.

point for Kyiv.

They don't want hostilities to simply restart should peace be achieved, and they want a credible deterrence against Russia.

So for Ukraine, this is an important step, but how it actually pans out will depend on whether they can get to a ceasefire.

We did hear from France and the U.K.

separately pledging that they could send troops.

So clearly we've heard talk before that while Ukraine might be the front line of defense, a multinational force could act as a backstop.

After the talks yesterday, the White House did release a statement talking about its role of monitoring the ceasefire, providing intelligence and helping to backstop that reassurance.

We heard from European leaders and American negotiators that progress was made.

European leaders were quick to stress that there is now alignment between the U.S., Europe, and Ukraine on security guarantees.

We heard talk of a multinational reassurance force that would be in the country were peace to be achieved.

The role and scope of that force is still unclear.