QINGDAO, China – The Chinese Navy on Sunday kicked off a biennial meeting of top foreign naval officials in the port city of Qingdao, in a show of military diplomacy that will be closely watched for signs of more engagement between China and the United States.

Hongzehu, a Type 926 submarine rescue ship, sits at the port as the Chinese People’s Liberation Army (PLA) Navy opens warships for public viewing to mark its upcoming 75th founding anniversary, in Qingdao, Shandong province, China on Saturday. (Reuters photo)

The four-day event with delegations from 30 countries comes during heightened tensions in the South China Sea, as US treaty ally Manila is in an increasingly fraught standoff with Beijing over the strategic waterway, which could be a potential flashpoint for U.S-China relations.

Pacific Fleet Commander Admiral Stephen Koehler will attend the Western Pacific Naval Symposium on behalf of the United States, according to a source familiar with the matter. Other country delegations include Australia, France, India, South Korea, Russia and Britain, state media reported.

Participants will hold closed-door talks on Monday, with seminars on topics such as addressing maritime security challenges. They will also discuss the Code for Unplanned Encounters at Sea, a set of guidelines formulated a decade ago, meant to de-escalate tensions between militaries at sea. It has not since been updated to cover drone warfare.

A January preliminary meeting discussed the creation of a working group to prevent drone collisions at sea, state media reported.

The event overlaps with annual US-Philippines large-scale joint military drills beginning on Monday, which will occur outside Philippine territorial waters for the first time.

Tensions are particularly high around the Second Thomas Shoal in the South China Sea, where Manila has accused Beijing of “harassment”, including the use of water cannons against Philippine vessels.

The United States, Japan and the Philippines signed a cooperation agreement at a trilateral summit last week, where leaders expressed concerns over China’s “dangerous and aggressive behaviour” in the South China Sea, which Beijing slammed as “bloc politics”.

“The US-Philippines joint drills this time cover a bigger region, involve more troops and include exercises out of its original defensive scope such as anti-submarine and anti-missile drills,” said Cao Weidong, a military expert and former researcher at China’s PLA Naval Military Studies Research Institute.

“It is not an issue when the US carries out defensive drills with the Philippines, but when these drills become offensive in nature and pose a threat to neighbouring countries, we must not only be on high alert but also respond.”

However, Washington and China resumed top-level military contact on Tuesday, with Defense Secretary Lloyd Austin speaking to his Chinese counterpart for the first time in almost two years, as both countries seek to restore military ties. This month, US and Chinese military officials met in Hawaii.

China is hosting the multilateral meeting for the first time since 2014, coinciding this year with the 75th anniversary of the People’s Liberation Army Navy on Tuesday.

Beijing aims to expand its ocean-going fleet, which some analysts predict will become the world’s biggest by 2035. President Xi Jinping has repeatedly called for a “world-class” military to be established by 2027, the 100th anniversary of the People’s Liberation Army’s founding.

China has yet to launch sea trials for its next aircraft carrier, the Fujian, a key step toward expanding its maritime presence in the Indo-Pacific, as the United States and its allies step up naval operations in the region.

China is involved in maritime or territorial disputes with other attending countries, including Japan. Beijing and Tokyo have accused each other of maritime incursions after a December coast guard confrontation near disputed islands in the East China Sea.

In November, Australia accused China of injuring navy divers using sonar pulses from a Chinese warship.

During the Qingdao meeting, the navy opened several active Chinese warships docked in Qingdao for public visits, including the Guiyang and Shijiazhuang missile destroyers. On a recent guided tour, Reuters journalists saw weapons systems and rescue equipment. Children excitedly posed for photos with missile launchers.

The symposium was last held in Japan in November 2022. Japan, South Korea and the United States met on the sidelines to discuss security challenges in the Indo-Pacific region, including those from North Korea.