A US-Philippine naval exercise will pull in Japan and Australia this year, That group takes a cautious view of Chinese exercises nearby.
But US president acknowledges that eventual outcome of his talks with Kim Jong-un is uncertain, with Pyongyang yet to agree to dismantle its nuclear arsenal and the permanent denuclearization of Korean peninsula.
Punitive trade measures continue to pile up as frustration over trade relations between Beijing and Washington grows.
Analysts: Mike Pompeo’s meeting with Kim Jong Un increased the likelihood that a summit will take place between Washington and Pyongyang.
The southernmost Chinese province will waive visas for tourists from 59 countries starting May 1.
US Ambassador to Japan William Hagerty says Washington also wants to see Korean Peninsula free of all nuclear, chemical, biological weapons.
Proponents say Nuclear Non-Proliferation Treaty must be strengthened to counter North Korean challenges.
Trump wants direct free trade agreement with Japan, while Abe still hopes to entice United States back into Trans-Pacific Partnership.
International nuclear inspectors entering North Korea by October could help Republicans in the 2018 elections and Trump in 2020.
Two leaders share pressing concern — North Korea, which has ballistic missile and nuclear weapons programs in defiance of international sanctions.
News of talks come as US and North Korea work on details of summit between two leaders.
President acknowledges the US has held direct talks at high levels, but White House later walks back claim.