Per _Politico_, Kyiv's allies, led by Starmer and France's Emmanuel Macron, want to keep the pressure on for a ceasefire while isolating Putin.
The UK and France have taken the lead in committing to help supply the military power required to keep Russia at bay if a truce is reached.
However, it is unclear what such a setup would look like.
The options considered have varied from a 30,000-strong "reassurance force" to 100,000 troops, one former British army chief predicted.