(190531) -- SINGAPORE, May 31, 2019 (Xinhua) -- Singaporean Prime Minister Lee Hsien Loong delivers a keynote speech at the 18th Shangri-La Dialogue held in Singapore, May 31, 2019. The 18th Shangri-La Dialogue opened here Friday evening to discuss the security situation and its challenges in the Asia-Pacific. In a keynote speech to open the event, Singaporean Prime Minister Lee Hsien Loong called for building a broader regional cooperation and multi-lateral arrangements, reaffirming Singapore's support to the China-proposed Belt and Road Initiative. (Xinhua/Then Chih Wey)