By Kiyoshi Takenaka TOKYO Mon Aug 4, 2014 9:33pm EDT (Reuters) – Japan finds itself surrounded by a worsening security environment as North Korea pushes forward with missile development and China and Russia step up military activity in the region, Japan’s Defence Ministry said on Tuesday. The ministry’s annual white paper comes after intermittent testing by North Korea of ballistic missiles in defiance of a U.N. ban, and a record number of scrambles by Japanese […]