United States President Barack Obama hosts a two-day summit in Rancho Mirage, California with leaders of the ASEAN member states, including democratically-elected Benigno Aquino III of the Philippines and Joko Widodo of Indonesia as well as autocratic rulers such as Hun Sen of Cambodia and Najib Razak of Malaysia.
The Philippines asks the International Court of Arbitration at The Hague to invalidate China's claims to virtually all of the South China Sea. The hearing was attended by observers from Indonesia, Japan, Malaysia, Thailand, and Vietnam.
The foreign ministers of Indonesia, Malaysia and Thailand meet in Kuala Lumpur to discuss people smuggling and the migrant crisis. Malaysia and Indonesia agree to accept asylum seekers providing that they can be resettled or repatriated within a year.
Newly released cables from Australian intelligence show the intelligence assessment that charges of sodomy laid against Malaysian opposition leader Anwar Ibrahim are due to a "set up job" that he "walked into". Others refer to Malaysia as a "confused and dangerous" state, Thai politicians as corrupt and Crown Prince Maha Vajiralongkorn as "very erratic and easily subject to influence", and Japan as a "big fat loser".