Richard Heydarian is a senior lecturer at the Asian Center of the University of the Philippines and author of "The Indo-Pacific: Trump, China and the New Struggle for Global Mastery."
There is an old adage that 80% of diplomacy is simply showing up for international summits. This is especially true in Southeast Asia, where there is a perennial fear of strategic abandonment as well as an extreme sensitivity to perceived slights and snobbery by major powers.
