He added that Vietnam and Japan have agreed to raise a stronger mutual voice to support and protect peace and cooperation, and prevent and protest against acts that violate international law and harm peace and stability in the region.  “Cooperation in maritime security is an issue of mutual concern. Japanese war ships have visited Vietnam to exchange experiences in search and rescue and other areas. We will see similar visits more frequently in the coming years, which will help to expand mutual understanding and ensure Japan’s legitimate presence in Asia-Pacific, particularly in the East Sea”, Mr. Vinh said.