(L-R) Ukraine's President Volodymyr Zelensky, Britain's Prime Minister Keir Starmer and France's President Emmanuel Macron embrace after holding a meeting during a summit at Lancaster House in central London on 2 March, 2025. Photo: AFP / Pool
This week European leaders scrambled to respond to unprecedented moves by the new administration of US President Donald Trump.
America has suspended military aid and intelligence sharing with Ukraine - and Moscow took advantage with huge ballistic missile and drone strikes across Ukraine.
But the US president has also floated the idea of sanctions on Vladimir Putin's regime.
It's forced European leaders to come up with a ceasefire plan that would involve European and Nato peacekeepers on the ground.
Rory Challands is a UK based international correspondent and speaks to Susie.