What is Pacific Islands Forum? How a summit for the world's tiniest nations became a global draw

NUKU'ALOFA, Tonga — As leaders of Pacific nations were welcomed to their annual meeting in Nuku’alofa, Tonga, on Monday, they were greeted first by torrential rain and then by an earthquake. The magnitude 6.9 quake was deep enough not to cause damage, but the long shudder and ankle-deep water served as a reminder of the natural vulnerabilities of many of the member countries of the Pacific Islands Forum, who are locked in an existential struggle for economic and environmental survival. It also...