A Japan Self-Defense Forces soldier guards near a unit of Patriot Advanced Capability-3 (PAC-3) missiles at the Defense Ministry in Tokyo, Japan June 22, 2016. REUTERS/Toru Hanai

A Japan Self-Defense Forces soldier guards near a unit of Patriot Advanced Capability-3 (PAC-3) missiles at the Defense Ministry in Tokyo, Japan June 22, 2016. REUTERS/Toru Hanai

A Japan Self-Defense Forces soldier guards near a unit of Patriot Advanced Capability-3 (PAC-3) missiles at the Defense Ministry in Tokyo, Japan June 22, 2016. REUTERS/Toru Hanai

August 19, 2016 4:07 AM (UTC+8)