Leaked Russian files reveal nuclear strike rules

In the years since, Russia and China have deepened their partnership, particularly since Xi Jinping took power in Beijing in 2012. The war in Ukraine has cemented Russia's status as a junior partner in their relationship, with China throwing Moscow a vital economic lifeline to help stave off western sanctions. Yet even as the countries became closer, the training materials show Russia's eastern military district was rehearsing multiple scenarios depicting a Chinese invasion. The exercises offer a rare insight into how Russia views its nuclear arsenal as a cornerstone of its defence policy — and how it trains forces to…