China and Indonesia Navy Drill East of Taiwan: A Passing Exercise Sold as Jurisdiction
China’s Ministry of National Defense announced on Tuesday that the Type 054A frigate Honghe will conduct a joint navigation exercise with an Indonesian navy frigate in waters east of Taiwan in mid-August. The stated content of the exercise is communications drills and underway replenishment. No dates, no coordinates, no route.
On the military ledger, that is close to nothing. Two frigates steaming in company, passing signals, practising a replenishment approach. Junior officer work. The Honghe entered service in 2022 with the Eastern Theater Command and the 054A is the most numerous frigate in the PLA Navy, which is to say Beijing did not send anything it considers precious.
What makes this worth attention is the location and the announcement, not the seamanship.
The first foreign flag in the eastern approaches
Beijing has been building a jurisdictional story east of Taiwan for months. Coast guard patrols off the island’s east coast began in June. Vessels from various ministries followed. Chinese authorities questioned foreign commercial shipping in those waters for the first time, an act that only makes sense if the point is to demonstrate an enforcement right rather than to enforce anything.
The eastern approaches matter for reasons that have nothing to do with symbolism. They are where Taiwan’s surviving forces would be resupplied from, where US carrier groups would most plausibly operate, and where Taiwan’s own second-strike survivability is thinnest. A blockade scenario that only closes the Strait is not a blockade. Beijing has understood that for a long time, and the last two years of PLA exercise design show it.
Announcing a drill with a foreign navy in that water is a different move from sailing there alone. Chinese state commentary called it the first naval exercise between China and a foreign country in those waters and described it as demonstrating sovereign rights and jurisdiction. That phrasing is the actual payload. Sovereignty claims are strengthened by acquiescence, and an outside navy operating alongside the PLA Navy in contested water, with the PLA Navy naming the water, is presented as acquiescence.
Jakarta says it is a passex on the way home from Russia
Indonesia’s navy answered on Wednesday with a much smaller description. The ship is the I Gusti Ngurah Rai, returning from a visit to Russia. What it will do is a passing exercise, the routine courtesy navies perform when transiting near one another. Not war fighting. A universal naval tradition, in the navy’s words.
There is no obvious reason to doubt this. Passing exercises are conducted constantly, including by Taiwan, and Indonesia has a long record of refusing to be enrolled in anyone’s alignment. Jakarta also has active reasons to stay unaligned here, since its own maritime friction with Beijing sits in the Natuna waters, where China’s claims cut into the Indonesian exclusive economic zone. A country arguing that Chinese claim lines lack legal force does not benefit from validating a new one further north.
Taipei read it the same way. The Mainland Affairs Council condemned the announcement as an infringement on sovereignty. A senior Taiwan security official told Reuters that Beijing was characterising a normal passex as a joint operation with military significance, and Taiwan’s framing was blunter still: exercises in name, expansion in fact, aimed at creating a false impression before international audiences that Beijing holds jurisdiction east of Taiwan.
Consent manufactured out of routine
This is the pattern worth naming, because it will recur. The gray zone tool here is not a warship. It is a press release.
Beijing takes an interaction that is real but trivial, describes it in the vocabulary of joint operations and sovereign jurisdiction, and publishes first. The partner navy then either stays quiet, which reads as agreement, or issues a correction days later in a smaller venue, which reaches a fraction of the original audience. Either way the map has been drawn once more with the eastern approaches inside Chinese jurisdiction, and the cost to Beijing was one frigate and a paragraph.
The timing fits the wider sequence. The PLA Navy’s Task Group 83 had just made a goodwill port call at Surabaya in early August, the second maritime touchpoint with Indonesia this month. Beijing has also raised its activity east of Taiwan since Tokyo and Manila announced talks on their maritime disputes in the same region. The drill sits inside a courtship of Jakarta and a pressure campaign against Taipei at the same time, and it costs Beijing nothing to have both readings available.
For Taiwan the practical exposure is not this exercise. It is that each announcement of this kind establishes a precedent that the next, larger one can be measured against as normal. Three foreign passexes from now, a genuinely multinational deployment east of the island becomes the continuation of an established practice rather than a new escalation.
Jakarta’s correction was the right response and it will not travel as far as the claim.