North Korea's renewed military support for Russia comes as US President Donald Trump has resumed military supplies to Ukraine, after a brief hiatus. Trump told NBC News on Thursday that he had made a deal with Nato for the US to send Patriot air defence systems to Ukraine via the alliance, after a surge of Russian aerial attacks.

Japan is facing its most severe security environment since World War II as three potential adversaries in East Asia – China, Russia and North Korea – ramp up military activities in the region, the country’s defense minister said Tuesday.