Europe correspondent- strong support for Ukrainians

It's estimated more than 1.5 million Ukrainians have fled the country in search of shelter, with many more expected to join the exodus. It's shaping up to be Europe's biggest refugee crisis since WW2, with a big shift in the EU's normally fractious refugee policy. Neighbouring countries are doing all they can to welcome Ukrainians, with an outpouring of help from governments and NGOs but also spontaneous networks of volunteers. EU nations and NATO allies are quickly reassessing European security strategies in light of the Russian invasion, with no one taking any chances about what Vladimir Putin may have in mind.