A transcribed conversation between President's Trump and Duterte of the Philippines on 29th April has been leaked and released by The Washington Post and The Intercept. You can read the full conversation HERE

https://www.documentcloud.org/documents/3729123-POTUS-RD-Doc.html#document/p1

The main points from the conversation were:

- ASEAN summit members are nervous regarding the Korean peninsula situation.

- China does have power over Kim Jong Un.

- The United States has two nuclear submarines in the region.

- President Trump is relying on China to solve the issue with North Korea.

- If North Korea does not cooperate, the United States has 20x the firepower of North Korea, although 'they don't want to use it'.