Sam Kiley joins the Ukrainian infantry near Zaporizhzhia, southern Ukraine, as they bed down in a mud dugout for a night of lethal drone attacks against their Russian enemy – just a few kilometres away

Sam Kiley meets Russian volunteers in Ukraine’s army near the southern front line who explain why they turned on Vladimir Putin – and how they’re happy to kill their countrymen

An intended summit in Budapest between Donald Trump and Vladimir Putin was called off on Wednesday