The amphibious tanks sailed from a US ship anchored a distance away, then rolled onto the beach of San Antonio, Zambales, northwest of the Philippine capital Manila, disgorging the Filipino and American sailors and marines armed with automatic rifles.
The exercise is part of the annual Cooperation Afloat Readiness and Training that the US conducts with its allies in Asia, including the Philippines, to address maritime security, strengthen partnerships and enhance interoperability.
The Philippines, the oldest of Washington's five defence treaty allies in Asia, has turned to the US to modernise its ill-equipped military amid the increasingly tense territorial rifts with China.
"Whenever we do an exercise, we always train to improve our capabilities, it is not meant for whatever threat or situation that are current," said Philippine Navy Commodore Roland Joseph Mercado.
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Marine Maj Damon Torres, commanding officer of the US landing force in the exercise, said the drills were a good opportunity to coordinate and learn about each other's capabilities.
The disputes between Beijing and Manila have worsened since Chinese government ships effectively gained control of the disputed Scarborough Shoal in 2012 then blockaded the Second Thomas Shoal, where Philippine marines have been based on a grounded navy ship since 1999.
Scarborough Shoal lies around 150 kilometres west where today's exercise was held.