What happened: Taiwan’s mobile internet throttling drill during annual war games

Taiwan conducted a mobile internet “throttling” drill across a large swathe of central Taiwan during its annual war games. The drill simulated communications disruptions that could occur in response to a Chinese attack or a natural disaster.

The drill was carried out in and around Taichung. During the internet throttling drill, basic mobile phone services remained operational. Key services such as ATMs and traffic signals were reported as not affected. Reported scope also included that landlines and fixed internet services were reported as not impacted.

Taiwan’s military also ran other simulations during the same period. One simulation was related to repelling an attempted Chinese air landing assault on the strategically vital Penghu Islands. The war games included air raid clearances for about 30 minutes.

Background and earlier position

Taiwan’s annual war games include a range of defensive and preparedness drills. The reported first-time inclusion of a mobile internet throttling drill indicates that Taiwan’s war-game scenarios expanded to test communications degradation and service continuity alongside other crisis and defence scenarios.