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( L to R) Myanmar's State Counsellor Aung San Suu Kyi, Singapore's Prime Minister Lee Hsien Loong, Thailand's Prime Minister Prayuth Chano-cha, Vietnamese President Tran Dai Quang, Chinese Premier Li Keqiang, Laos Prime Minister Thongloun Sisoulith, Philippines President Rodrigo Duterte, Brunei's Sultan Hassanal Bolkiah, Cambodia's Prime Minister Hun Sen, Indonesia's President Joko Widodo and Malaysian Prime Minister Najib Abdul Razak pose for photo during ASEAN-China Summit in Vientiane, Laos. Reuters
U.S. President Barack Obama (2nd R) bows as he meets Thippasone Soukhathammavong, director of UXO Lao, as he visits the Cooperative Orthotic and Prosthetic Enterprise (COPE) for victims of amputations due to accidents with the many rounds of unexploded ordnance remaining in the Laotian countryside following the Vietnam War era, on the sidelines of the ASEAN Summit, in Vientiane, Laos. Reuters
U.S. President Barack Obama walks with Indian Prime Minister Narendra Modi after a group photo session for the G-20 Summit at Xizi Hotel in Hangzhou in eastern China's Zhejiang province. AP
Chinese Premier Li Keqiang (2nd L) walks with Foreign Minister Wang Yi (2nd R) after a meeting session at the Association of Southeast Asian Nations (ASEAN) Summit in Vientiane. The gathering will see the 10 ASEAN members meet by themselves, then with leaders from the US, Japan, South Korea and China. AFP
Malaysia's Prime Minister Najib Razak, left, greets Japan's Prime Minster Shinzo Abe prior to the ASEAN Plus Japan meeting in the ongoing 28th and 29th ASEAN Summits at the National Convention Center. AP
Myanmar's Foreign Minister Aung San Suu Kyi, left, smilies as she speaks with Singapore's Foreign Minister Vivian Balakrishnan, center, ahead of 19th ASEAN-China summit, a parallel summit in the ongoing ASEAN Summits and other related summits at National Convention Center in Vientiane. AP
ASEAN leaders, from left front row, Philippine President Rodrigo Duterte, Brunei Sultan Hassanal Bolkiah, Cambodian Prime Minister Hun Sen and Indonesian President Joko Widodo, look over their documents at the start of the retreat session in the ongoing 28th and 29th ASEAN Summits and other related summits at the National Convention Center in Vientiane, Laos. AP
ASEAN leaders, right, listen to speeches during their dialogue with representatives of the Inter-Parliamentary Assembly in the 28th and 29th ASEAN Summits and other related summits in the National Convention Center in Vientiane, Laos. (AP Photo/Bullit Marquez)