By Anadolu staff
ANKARA (AA)- The US, Japan, Australia and the Philippines held a joint maritime exercise in the disputed South China Sea, propelling their common rival China to launch a naval and air patrol in response, the Philippines military said late Sunday.
Held on Sunday within the Philippines' exclusive economic zone, the four-nation drill demonstrated the countries' "commitment to strengthen regional and international cooperation in support of a free and open Indo-Pacific through interoperability exercises in the maritime domain," the Manila Times newspaper reported, citing the military.
The four countries' forces performed a communication exercise, division tactics and other drills.
The exercise was joined by Japan Maritime Self-Defense Force destroyer Akebono, a US combat ship Mobile, the Royal Australian Navy frigate Warramunga and the Philippine Navy frigate Antonio Luna, among others.
China's military on Sunday conducted a naval and air patrol in the disputed South China Sea to counter the four-nation joint drills amid heightened tensions in the region.
The territorial claims in the resource-rich South China Sea remain highly contested, despite repeated calls for a negotiated settlement and avoiding breaches of sovereignty.
In 2016, China was dealt a blow when the Permanent Court of Arbitration (PCA), an international tribunal based in The Hague, ruled that Beijing’s nine-dash line claim has no legal basis under international law.