Thai Prime Minister Prayut Chan-o-cha speaks at the press conference of the 35th summit of the Association of Southeast Asian Nations (ASEAN) and the related summits in Bangkok, Thailand, Nov. 4, 2019.

Participants attend the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Russian Prime Minister Dmitry Medvedev (front) attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Brunei Sultan Haji Hassanal Bolkiah (front) attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Cambodian Prime Minister Samdech Techo Hun Sen (front) attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Philippine President Rodrigo Duterte attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Singaporean Prime Minister Lee Hsien Loong (front) attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Myanmar State Counselor Aung San Suu Kyi (C) attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States. (Xinhua/Zhu Wei)

South Korean President Moon Jae-in (front) attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

(From L to R) Thai Prime Minister Prayut Chan-o-cha, Vietnamese Prime Minister Nguyen Xuan Phuc, Australian Prime Minister Scott Morrison, Brunei Sultan Haji Hassanal Bolkiah, South Korean President Moon Jae-in, Indian Prime Minister Narendra Modi, Indonesian President Joko Widodo, Japanese Prime Minister Shinzo Abe and Lao Prime Minister Thongloun Sisoulith attend a photo session during the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

(From L to R) U.S. national security advisor Robert O'Brien, Singaporean Prime Minister Lee Hsien Loong, Russian Prime Minister Dmitry Medvedev, South Korean President Moon Jae-in, Philippine President Rodrigo Duterte, New Zealand Prime Minister Jacinda Ardern, and Myanmar State Counselor Aung San Suu Kyi attend a photo session during the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Vietnamese Prime Minister Nguyen Xuan Phuc (front) attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Indonesian President Joko Widodo attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Malaysian Prime Minister Mahathir Mohamad (C) attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Indian Prime Minister Narendra Modi attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Thai Prime Minister Prayut Chan-o-cha (C) attends the 14th East Asia Summit in Bangkok, Thailand, Nov. 4, 2019. The summit is an annual regional event gathering 10 members of the Association of Southeast Asian Nations (ASEAN), as well as China, Japan, South Korea, India, Australia, New Zealand, Russia and the United States.

Guests attending the 7th ASEAN-U.S. Summit pose for a group photo during the summit in Bangkok, Thailand, Nov. 4, 2019.

Thai Prime Minister Prayut Chan-o-cha attends the 7th ASEAN-U.S. Summit in Bangkok, Thailand, Nov. 4, 2019.

Robert O'Brien, national security adviser for U.S. President Donald Trump, attends the 7th ASEAN-U.S. Summit in Bangkok, Thailand, Nov. 4, 2019.

Thai Prime Minister Prayut Chan-o-cha speaks at the press conference of the 35th summit of the Association of Southeast Asian Nations (ASEAN) and the related summits in Bangkok, Thailand, Nov. 4, 2019. (Photos: Xinhua)