Japan, which has territorial disputes over islands with both China and Russia, is particularly concerned about the close relationship between Beijing and Moscow, which have conducted joint military exercises near Japan’s coasts. Japanese Prime Minister Fumio Kishida began a surprise visit to Ukraine early Tuesday, hours after Chinese President Xi Jinping arrived in neighboring Russia for a three-day visit.Japan was quick to react because it fears the possible impact of a war in East Asia, where China’s military has grown increasingly assertive and has escalated tensions around self-ruled Taiwan, which Beijing claims as its territory. How is this likely to go ?