The ship sat moored at Subic Bay for nearly a full year. The Philippine Navy officially acquired the ship on 5 April 1976 and renamed her BRP
Dumagat (AL-57). She was quickly renamed again to BRP
Sierra Madre (LT-57) after the
Sierra Madre mountain range. The ship continued to operate as an amphibious transport for the next decades through the 1990s. In 2013,
The New York Times visited the site and reported on the life of the handful of marines stationed there, and the vessel's role in the
geopolitics of the South China Sea. It was inferred that
Sierra Madre would never sail again, but had gained importance due to her role as an outpost in the
Spratly Islands dispute. (foreground) vessel off
Second Thomas Shoal, where BRP
Sierra Madre (background) was grounded. On 11 March 2014, the Philippine government protested to the Chinese
chargé d'affaires in Manila that the Chinese Coast Guard had on 9 March prevented two civilian vessels hired by the Philippine Navy from exchanging personnel on, and delivering supplies to the
Sierra Madre. This was the first time that Chinese forces had interfered with resupply. On 13 March, the Philippines conducted an aerial resupply mission to the marines. On 1 April 2014, the Philippine Navy succeeded in getting a fishing boat with resupply and replacement marines past the Chinese blockade. In September 2014,
Rupert Wingfield-Hayes, reporting for the
BBC, visited
Sierra Madre which remained blockaded by the Chinese coastguard. At this time supplies for the garrison of 11 Filipino marines were dropped by air. The ship was described as in a poor condition: "The ship's sides are peppered with massive holes. Waves slosh through them right into the ship's hold." In July 2015,
Philippine Navy spokesman Colonel Edgardo Arevalo said that they were doing maintenance repair on the ship to ensure its minimum habitability. In November 2021, Chinese Coast Guard ships blocked two civilian boats resupplying the vessel. On February 6, 2023, the Chinese Coast Guard used what the Philippines Navy described as a military grade laser to temporarily blind crew. On 6 August 2023, Chinese Coast Guard ships fired water cannon at a Philippine Coast Guard ship resupplying the
Sierra Madre. Increased encounters with Chinese patrols has coincided with a change in foreign policy from Philippines President
Bongbong Marcos who has increased cooperation with the US military. In February 2023, he announced an expansion of the
Enhanced Defense Cooperation Agreement. In October 2023, repairs and retrofitting to the BRP
Sierra Madre started. The Philippine government aimed to improve the living conditions inside the ship by repairing the existing sleeping quarters, adding a modern kitchen, and access to the internet. ==Citations==