Civilians have received benefits for work at the Nevada test site, but Cold War-era regulations still do not allow veterans to prove they were there, too.
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.
China has warned that a deepening US-Philippines security alliance should not harm its security and territorial interests, especially in South China Sea.