As Russia provokes Europe with drones, jets, and strikes on tankers, and is the prime suspect in the bombing of a Polish train, it is becoming increasingly likely that Nato will have to act, warns world affairs editor Sam Kiley

Donald Trump’s justification for the killing of alleged drug smugglers on boats from Venezuela and his subsequent threat of invasion is nonsense – and dangerous in a world where international law means nothing, writes world affairs editor Sam Kiley

Frontline medics and soldiers near Kramatorsk in eastern Ukraine tell world affairs editor Sam Kiley how Nato is far from ready for war with Russia – and is training for a bygone era

Frontline medics and soldiers near Kramatorsk in eastern Ukraine tell world affairs editor Sam Kiley how Nato is far from ready for war with Russia – and is training for a bygone era