(File) A Cambodian police officer (R) walks past the ASEAN logo in front of the Peace Palace during the 45th Association of Southeast Asian Nations (ASEAN) Foreign Ministers' Meeting (AMM) in Phnom Penh on July 8, 2012. The US-China rivalry and growing fears of a new North Korean nuclear test will loom over a meeting this week of Southeast Asian leaders attended by US President Joe Biden.(AFP/TANG CHHIN SOTHY)