TOKYO, Japan (AFP) — Japan’s defense chief on Monday warned the country faces a tough security environment, with China and Russia stepping up military activity and North Korea posing “imminent threats”. Defense Minister Itsunori Onodera said China had been “unilaterally escalating” its military activities in the past year, including carrying out new airborne operations around Japan and running a nuclear submarine near disputed East Coast isles. “China has been rapidly improving its military strength and […]