Taiwan Strait developments — 1 November 2026
The coast guard lane and the air lane both moved this week, and neither crossed a threshold. A Chinese coast guard ship entered the waters at Pratas again with its tracking system off and, by Taiwan's account, called its presence a law-enforcement inspection patrol in Chinese waters, while four ships entered Kinmen's restricted waters twice in one day. The PLA's fifth designated patrol of October, on 31 October, put the month one above this year's run of two to four, and short of twice it. Pakistan closed its airspace to Taiwanese airlines for about three days, citing the one-China policy, and reversed the closure within hours of it being reported. No boarding, inspection or closure area, no named exercise and no new Taiwan Affairs Office measure.
The developments
A Chinese coast guard ship entered the waters at Pratas with its tracking off for the second time in eleven days and, by Taiwan's account, called its presence law enforcement, while four ships entered Kinmen's waters twice in one day
Taiwan's Coast Guard Administration reported that on 31 October China Coast Guard 3102, detected north-west of Pratas with its tracking system (AIS) off, entered the restricted waters from the west of the island at about 04:00. The cutter Patrol No. 7 shadowed it, at one nautical mile at the closest point. By the coast guard's account the Chinese ship said by radio that it was carrying out a law-enforcement inspection patrol and that the waters were under Chinese jurisdiction; the cutter answered that Taiwan is not subordinate to the People's Republic and ordered it to leave. The release said the standoff was continuing. It was the same ship that entered the Pratas waters with AIS off on 20 October, and the coast guard has published an end to neither standoff. It counts thirteen expulsions at Pratas in 2026, with sixteen ship-sorties. On 30 October four Chinese coast guard ships, 14608, 14531, 14607 and 14529, entered Kinmen's restricted waters at about 08:00 and again at about 14:00, leaving at 11:03 and 17:00, and broadcast that Taiwan's retrocession and the motherland's unification are a historic cause; Taiwanese boats answered that the two sides are not subordinate to each other. October closes with Kinmen entries on 9, 13 and 30 October. Separately, the coast guard's own statement on the 22 October shadowing of Japan Coast Guard ships, posted on its news list by 27 October, matches what the last brief reported and gives the Japanese ships' course as southward along the median line. The PRC foreign ministry's transcripts of 29 and 30 October, and the Taiwan Affairs Office's of 28 October, carry no remark on Pratas, the coast guard or the Japanese ships.
Why it matters. The week repeated the lane's two forms rather than adding a third. At Pratas the same hull returned with its tracking off, and the enforcement language the Taiwan Affairs Office used on 21 October was, on Taiwan's account, voiced from the ship itself; jurisdiction was asserted by presence and by words, as before, and no boarding, inspection or detention followed. At Kinmen four entries on three days is inside the roughly four-a-month pattern of the past two years, and the three-hour entries are longer than the two-hour entries of August but not of a different order. The item establishes nothing about why 3102 entered with its tracking off, how long either standoff lasted, or any decision to extend the Kinmen model. What would change the reading is one boarding or inspection of a vessel bound for Kaohsiung, Keelung or Taichung, a PRC statement claiming authority over foreign government ships in the strait, or a Kinmen month well outside the pattern.
- 中國海警匿蹤侵擾東沙限制水域 海巡巡護七號併航監控強勢驅離 (China Coast Guard ship enters Pratas restricted waters dark)
- 中國海警船4艘1天2次騷擾金門 海巡破浪應處堅定維護國家主權 (Four China Coast Guard ships harass Kinmen twice in one day)
- 有關日本海上保安廳巡視船航行臺灣海峽避風，發生中國海警船尾隨跟監事項，海巡署回應說明 (Coast guard response on the shadowing of Japan Coast Guard ships)
- 2026年10月29日外交部发言人郭嘉昆主持例行记者会 (Foreign ministry press conference, 29 October 2026)
A fifth designated PLA patrol of October, on 31 October, put the month one above this year's run of two to four a month, and short of twice it
On 31 October Taiwan's defence ministry designated a PLA joint combat readiness patrol. From 13:15 it detected 22 aircraft, including J-10, J-16, KJ-500 and Y-20 tanker types and drones, 18 of which crossed the median line or its extension, in the northern, central and south-western areas and in the western Pacific airspace, operating with PLA ships. It was the fifth designated patrol of October, after the 6th, 9th, 14th and 20th. The daily reports, each covering 06:00 to 06:00, counted 3, 3, 6, 6, 6 and 13 aircraft for the six days from 25 October, and 32 for 31 October to 1 November, 26 of them across the median line into the northern, central, south-western and eastern areas. The ministry counted 6 to 8 PLAN ships and one to nine official ships a day. It gives no reason for the low counts and none is assigned here. No named exercise was announced.
Why it matters. Five in a month is the first time this year the designated cadence has left the run of two to four, which held from January to September with one month at one. The cadence observable's marker is a month at zero or at twice the run, and five is neither, so the reading moves and the assessment does not. As on 20 October, the release named the western Pacific as well as the strait's areas rather than instead of them. The item establishes nothing about why the PLA designated a fifth patrol, about intent, or about the month's total air activity, which the ministry's daily figures describe and which was not totalled. What would change the reading is a month at eight or more designated patrols, or at none, a patrol designated in the eastern approaches instead of the strait, or a named exercise.
Pakistan closed its airspace to Taiwanese airlines for about three days, citing the one-China policy, and renewed their permits within hours of the move being reported
According to Bloomberg reporting carried by the Taipei Times, China Airlines and EVA Air stopped flying through Pakistani airspace from 25 October and rerouted at least a dozen Asia–Europe flights over Russia. On 28 October Pakistan's defence minister, Khawaja Asif, who also holds the aviation portfolio, told Bloomberg that the sector follows the one-China policy and allows only Chinese airlines to overfly. Hours later, on documents dated 28 October that Bloomberg saw, Pakistan's Civil Aviation Authority renewed both carriers' permits until 27 March 2027, and an EVA flight to Vienna entered Pakistani airspace at about 03:30 on 29 October. Taiwan's foreign ministry condemned Pakistan on 28 October for politicising and weaponising its airspace; a deputy foreign minister, Chen Ming-chi, said Taipei suspected China was behind it. On 29 October the PRC foreign ministry spokesperson, Guo Jiakun, asked about the closure, said the one-China principle is a broad international consensus and that, as far as Beijing understood, residents of the Taiwan region face no obstacle to international travel. Taiwan's transport ministry said the permits match the winter schedule and that it will apply for the summer season.
Why it matters. A state applied the one-China policy to the commercial overflight rights of Taiwan's airlines, which is a different instrument from the refusal of overflight to the president's flight by three states in April: it touched scheduled traffic rather than a political journey. It lasted about three days and was reversed without a stated reason. The item establishes nothing about whether Beijing asked for it, which is Taipei's suspicion and which the PRC answer neither confirmed nor denied. It is not an action on a Taiwanese national under the PRC's unification instruments, so the third-state observable on that question is not touched. What would change the reading is a second state closing its airspace to Taiwanese carriers, or a refusal of the summer-season application.
Where this fits
This is one conflict's dated review for the week. The cross-conflict edition for the same week carries the most consequential findings from every conflict Vigil covers. The standing picture this review updates is the Taiwan Strait coverage. How Vigil grades, dates and sources its claims is set out in the methodology, and anything later found wrong is recorded in the corrections log.
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