MediumIII Kinetic Conflicts & Defence13 September 2026, Sunday
Chinese military activity around Taiwan continues ahead of the summit; Taiwan unveils a record defence budget
21 aircraft and 15 vessels were detected on 6–7 September; Taiwan plans a defence budget of 1 trillion NT dollars for 2027.
According to Taiwan News, 21 Chinese aircraft and 15 vessels, 10 of them naval, were detected around Taiwan on 6–7 September; 13 of the aircraft crossed the median line of the Taiwan Strait. According to a statement by Taiwan's Ministry of National Defense on 13 September, 5 sorties, 5 naval vessels and 2 official ships were tracked on 12–13 September, and 3 aircraft entered the air defence identification zone. The Daily Caller gives a different figure for the same day; the difference probably stems from the time window used.
Taiwan announced a record defence budget of 1 trillion New Taiwan dollars for 2027, equivalent to about 31 billion dollars. According to the Daily Caller, air activity declined markedly in 2026 while the presence of official ships increased. The activity shows grey-zone pressure continuing ahead of the 24 September Trump–Xi summit, as well as concern in Taiwan that it could be put on the negotiating table.
Talay assessment
Bottom line
Chinese activity around Taiwan looks like continuous grey-zone pressure that does not rise above routine ahead of the 24 September Trump–Xi summit. Falling air activity alongside a growing official vessel presence suggests pressure is shifting from military display to assertions of legal-administrative control. The most likely path is this level holding until the summit; Taiwan's record budget reflects an effort to strengthen its own deterrence against being treated merely as a bargaining chip in US–China talks.
Likely effects
- Taiwan Strait securityNegative1–6 months
Aircraft routinely crossing the median line and the growing presence of official vessels gradually erode de facto boundaries. This keeps the risk of accidental clashes low but persistent.
- Semiconductor supply chainUncertain1–6 months
Constant pressure around Taiwan keeps a geopolitical risk premium alive for the global chip supply chain that depends on the island. Absent serious escalation, the effect shows less in prices than in companies' supply diversification plans.
- US–China summit bargainingNegativeWeeks
Activity ahead of the summit can be read as Beijing's tool for keeping Taiwan on the agenda. Concern about Taiwan being placed on the negotiating table pushes Taipei to demonstrate resolve to Washington by increasing defence spending.
Possibilities, ranked
- 1Routine grey-zone pressure continues65%
Daily aircraft and vessel counts stay at current levels through and after the summit; no large-scale exercise takes place.
Watch: Aircraft and vessel counts in Taiwan's Ministry of National Defence daily statements staying in a similar range.
- 2Major exercise after the summit20%
The summit does not meet Beijing's expectations on Taiwan or an arms sale advances; China responds with a named exercise encircling the island.
Watch: China announcing a named exercise and a sudden jump in aircraft crossing the median line.
- 3Marked easing15%
The summit produces a positive framework for US–China relations and activity around Taiwan falls markedly for several weeks.
Watch: Softer language on Taiwan in the summit statement and a sustained fall in daily activity counts.
Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.