This is the gravest crisis for Western security since the end of World War Two. So which nations will step forward as the new world order emerges?

Steve Witkoff says the UK plans for an international force to support a ceasefire are a "posture".

The Prince of Wales is showing support for UK troops in a Nato operation to defend the Baltic states.

A joint statement said it was "paramount" troops had flexibility to defend Nato's eastern flank.

Russia will seek guarantees that Ukraine will remain neutral in any deal, a deputy foreign minister says.

Poland's prime minister said his government plans to have a model ready by the end of the year.

Sweden and Finland's defence sectors are benefiting from their countries joining Nato.

America has withdrawn its military support for Ukraine, how big of a hole does it leave?