Prime Minister Shinzo Abe returned to Tokyo on Saturday after making the first official trip to China by a Japanese leader in nearly seven years.During his three-day visit to Beijing, Abe agreed with Chinese President Xi Jinping and Premier Li Keqiang to strengthen economic and security cooperation and build new relations based on the principle of shifting "from competition to collaboration" after years of tensions over territorial and wartime issues.Since returning to power in late 2012, Abe had visited China twice to attend multilateral economic meetings, but the latest trip was the first…READ FULL ARTICLE