As Japan prepares to host a powerful group of Western democracies next week, Tokyo is pursuing its largest military build-up since World War II. The resurgent Asian power wants to use the summit as an opportunity to discuss threats to global security in the region and beyond. "I think it's a unique moment in history, I think it's a turning point in several ways," one Japanese official told Newsweek of the context surrounding the Group of Seven (G7) gathering to be held in the Japanese city of Hiroshima from May 19-21. The meeting will bring Japan together with fellow G7...