A Center for International and Strategic Studies analysis warns that the Trump administration's use of strikes on alleged drug vessels poses serious risks.
China's military has dispatched a pair of navy ships to take part in joint drills with Singapore's navy and join a regional maritime security exhibition.
The sea services want to be able to practice complex scenarios in a training and simulation environment that pulls together all-domain sailors and Marines.
This year's Balikatan exercises between the treaty allies are the largest since the two sides started joint military combat-readiness exercises in 1990s.