Experts say three scenarios emerge for Ukraine war: prolonged stalemate, Ukrainian momentum reshaping talks or dangerous erosion of Western resolve against Russia.

It’s been four years since Russia launched its full-scale and illegal war of aggression on Ukraine, triggering the largest conflict on European soil since World War Two.

The World Bank has updated its cost estimate for Ukraine’s reconstruction, raising it to $588bn as of the end of last year from $524bn in its previous report.