What if Ukraine falls? This is no longer a hypothetical question – and it must be answered urgently

For 40 cruel and bloody months, Ukraine has fought the Russian invader. Since February 2022, when Moscow's full-scale, countrywide onslaught began, its people have faced relentless, devastating attacks. Tens of thousands have been killed or wounded, millions have lost their homes. Ukraine's industries, shops, schools, hospitals and power stations burn, its fertile farmlands are laid waste. Its children are orphaned, traumatised or abducted. Despite repeated appeals, the world has failed to stop the carnage. And yet Ukraine, outnumbered and outgunned, has continued to fight back. Ukrainian heroism amid horror has become so familiar, it's almost taken for granted. But as…