I'd bet that's a Chinese drone. The PI has virtually no air defense capability, and the Chinese are not above overflights as a bit of sabre rattling. Might be trying to make a point as a result of the US withdrawal from Afghanistan. China and the PI have had a number of eyeball to eyeball naval confrontations in the Sourh China Sea over the past few years.Mystery Flying Wing Aircraft Photographed Over The Philippines (Updated)
The aircraft resembles the one seen in an image taken in California a year ago that is thought to be of the elusive RQ-180 stealth spy aircraft.www.thedrive.com