Photo credit, NASA Landsat 7 image of Scarborough Shoal in the South China Sea
The former USCGC Hamilton, now BRP Gregorio del Pilar, is at the center of a standoff with the Chinese over a remote atoll shaped group of rocks and shallows called variously Scarborough (or Panatag) Reef or Shoal.
Both the Chinese and the Philippines claim sovereignty.
A Philippine patrol plane located eight Chinese fishing vessels inside the atoll. With the Gregorio del Pilar now on scene, two Chinese Maritime Surveillance vessels are blocking Philippine fisheries enforcement action against the fishing vessels and the Chinese are demanding the Philippine Navy depart their waters; while the Philippines is asserting it will enforce its sovereignty. Diplomacy is given lip service, but the standoff is ongoing. The US has a treaty obligation to the Philippines (subject to interpretation of course) and there are calls for US assistance.
A long discussion from the Philippine point of view here.
Photo: Philippine flag planted on Scarborough Shoal, Photographed by Adel Rosario, 05:11, 2 May 2010 (UTC)
Russia is a wild card in China/Philippines relationships in the South China Sea. https://www.realcleardefense.com/articles/2019/12/18/russias_growing_interests_in_the_south_china_sea_114932.html
China Coast Guard pushing the Philippines in South China Sea. https://www.eurasiareview.com/12042020-china-sends-coast-guard-ship-to-scarborough-shoal/
More here: http://www.eaglespeak.us/2020/04/south-china-sea-political-mess-summed-up.html
View from PACOM https://ipdefenseforum.com/2021/02/ccps-controversial-coast-guard-law-a-verbal-threat-of-war/
“What Are China’s Leaders Saying About the South China Sea?”https://www.realcleardefense.com/articles/2021/02/24/what_are_chinas_leaders_saying_about_the_south_china_sea_661600.html
220 Chinese Militia Vessels Invade Philippines EEZ https://gcaptain.com/chinese-militia-philippines-eez/?fbclid=IwAR3ldCiaKHCj3Q3OOxMbvyMiKEX28Fq62ts8gtF3cSChWXDjwxDVrtK8YlM
Another version of the story. https://gcaptain.com/philippines-protests-threatening-presence-of-chinese-vessels-in-disputed-south-china-sea-waters/
More construction by the Chinese. https://www.scmp.com/news/china/military/article/3126656/south-china-sea-beijing-has-extended-another-spratly-islands
Chinese Ship Deployment Roils South China Sea https://www.npr.org/2021/03/26/981668318/chinese-ship-deployment-roils-south-china-sea
Philippines Sends Fighter Planes To Buzz Chinese Coast Guard https://gcaptain.com/philippines-chinese-cg-ships/
A new Chinese move to steal another piece of the Philippines EEZ and set up a military outpost. https://www.bloomberg.com/news/articles/2021-04-05/china-tests-biden-with-south-china-sea-tactic-that-misled-obama
China, looking for mineral wealth in the EEZ of other countries.
https://gcaptain.com/china-drills-for-core-samples-in-dispute-south-china-sea/
USN backing for the Philippines https://news.usni.org/2021/04/09/u-s-carrier-strike-group-amphibious-warships-massed-in-south-china-sea-as-regional-tensions-simmer
Looks like the Philippines may have moved forcefully. https://news.usni.org/2021/04/13/officials-the-philippines-expanding-south-china-sea-patrols-near-disputed-reef?utm_source=USNI+News&utm_campaign=eceaac05f9-USNI_NEWS_DAILY&utm_medium=email&utm_term=0_0dd4a1450b-eceaac05f9-230448833&mc_cid=eceaac05f9&mc_eid=e873a959e6