The Japan Ministry of Defense and Japan Maritime Self-Defense Force conducted its 2nd Japan-ASEAN Ship Rider Cooperation Program on board JS OSUMI from 10 to 15 May cruising at international waters from Indonesia to Malaysia.
Japan Ministry of Defense: Vientiane Vision: Japan’s Defense Cooperation Initiative with ASEAN
http://www.mod.go.jp/e/d_act/exc/vientianevision/index.html