Vladimir Putin has sought to reassure Russian citizens that Moscow is winning a "righteous war" in a video address. But Donald Trump's Ukraine envoy has declared otherwise. Follow the latest.

Russia’s invasion of Ukraine and rising global tensions have fuelled a boom in military tech start-ups, from AI fighter jets to robotic spies.

Romania hosts a contingent of US troops and plans to invest more than €2.5 billion into its Mihail Kogălniceanu Air Base in the coming years, expanding its capacity to accommodate 10,000 troops.