The President's visit to Palawan comes amid heightened tensions in the West Philippine Sea, following the recent incursions of Chinese vessels into the disputed waters.
China Coast Guard (CCG) showed aggressive acts against Philippine personnel on a rotation and reprovisioning (RORE) operation to the BRP Sierra Madre at Ayungin Shoal in WPS last week.
Armed Forces of the Philippines said the CCG "intentionally high-speed rammed" a Philippine Navy serviceman, later identified as Seaman First Class Underwater Operator Jeffrey Facundo, on 17 June, leading to the loss of the sailor's right thumb.
Ayungin Shoal (Second Thomas Shoal), also known as Ren'ai Reef in China is located within the Spratly Islands, a collection of over 100 islands and reefs in the South China Sea.
Part of the nation's continental shelf, it lies 105 nautical miles west of Palawan and inside the 200-mile exclusive economic zone (EEZ).
A Philippine Navy ship known as the BRP Sierra Madre is located close to the Ayungin coast and is said to have grounded in 1999. In the off-shore region, the ship has come to represent Philippine sovereignty.
China claims nearly the whole South China Sea, a conduit for about $3 trillion in yearly ship-borne trade, with portions claimed by the Philippines, Vietnam, Indonesia, Malaysia, and Brunei.
This is the case in spite of an arbitrary decision that nullified its enormous rights in the rich in resources region. Beijing disregarded the verdict and carried on bolstering its position in the area, including by forceful acts.