Has the PLA's Activities in the Taiwan Strait Cooled Down in 2026? The New Normal Behind 4 Military Aircraft and 9 Vessels

On September 26, the Taipei authorities announced that in the next two weeks, multiple rounds of military aircraft training will be arranged for the "National Day" parade and flight demonstration, and some flights at Songshan Airport may be adjusted. This seemingly internal aviation control news from Taiwan provides a window to observe the military rhythm in the Taiwan Strait: while the public focuses on large display events, the PLA is increasingly placing pressure on routine, low-visibility, and sustainable air and naval operations.

A Decrease in Numbers Does Not Mean Pressure Has Disappeared

The Taipei Times reported that the Taiwanese military will conduct flight drills next Wednesday, Friday, and on October 5 and 6, with backup dates prepared for October 7 and 8 if necessary. Compared to the PLA's high-intensity exercises around Taiwan, these activities carry stronger political symbolism, but they also occupy airport, airspace, and command resources. Both sides of the Taiwan Strait are embedding military operations into daily routines, with the only difference being the external narrative.

According to Taiwan News on September 22, citing defense department data, from 6 AM the previous day to 6 AM that day, Taiwan monitored 4 PLA military aircraft, 6 naval vessels, and 3 government ships operating around Taiwan, with 4 military aircraft crossing the median line of the strait and entering Taiwan's central and southwestern air defense identification zone. By that time in the month, Taiwan had recorded a total of 188 PLA military aircraft activities and 223 naval activities. The daily numbers are not high, but the process of "crossing the median line—deploying military aircraft, naval vessels, and land-based missiles for monitoring" has become highly institutionalized.

The PLA May Be Changing Its Pressure Tactics

The Indo-Pacific Strategic Research Center assessed in September that the volume of PLA activities in the air defense identification zone in 2026 has decreased from previous peaks, which may be an intentional calibration of rhythm rather than a weakening of training capability or political will. This judgment remains a hypothesis based on publicly available information and should not be taken as a conclusion, but it explains a phenomenon that is easily overlooked: as the number of activities decreases, the reconnaissance, electronic warfare, and air-sea coordination value of each individual action may actually increase.

From an engineering and support perspective, sustained high-frequency operations do not come for free. The number of sorties consumes engine life, pilot training hours, and ground maintenance resources, while long-term deployment of vessels involves fuel, spare parts, and rotations. If Beijing's goal is to maintain pressure rather than create an immediate crisis, then maintaining a fixed direction, fixed procedures, and fixed response chains with fewer sorties may be more economical than periodic large-scale military exercises. In simple terms, it is about gradually transforming "showing force" into "maintaining watch."

The Real Impact on the Balance in the Taiwan Strait

This change poses a challenge for Taiwan, as the early warning system cannot only focus on peak activities. Taiwan must simultaneously address low-intensity gray zone activities, its own airspace needs for festive parades, and potential joint operations that could escalate. A smaller number of military aircraft does not mean there is no intelligence gathering, route probing, or command chain integration; a larger number of vessels does not necessarily mean a blockade is imminent. Identifying the gap between "quantity" and "intent" is the core task of the air defense and maritime surveillance systems.

The author believes that the most common mistake made by outsiders now is to directly translate the decrease in activities into a relaxation of tensions. A more reasonable statement would be: the PLA is testing a lower-cost, more sustainable presence in the Taiwan Strait while retaining the capability to rapidly scale up. The upcoming National Day flight drills in Taiwan also indicate that military activities on the island are entering a more intensive annual rhythm. What is truly worth tracking is not how many military aircraft appear on the next single day, but whether the PLA combines lower sortie numbers with more stable vessel and aircraft coordination, electronic reconnaissance, or long-range deployments in the coming month.

Sources and Matters to be Confirmed

Main sources include reports from the Taipei Times on September 26, 2026, Taiwan News on September 22, 2026, and the Indo-Pacific Strategic Research Center's "Chinese Military Power — September 2026." There is currently a lack of official explanations and complete data over several months regarding whether the decrease in PLA activities constitutes a long-term strategy, and the conclusion remains to be confirmed.