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Taiwan Han Kuang drills add first mobile-network cutoff | 14 regions, 30 minutes voice-and-SMS only

TL;DR

Taiwan's 2026 Han Kuang exercise runs August 5-14, adding a first-ever mobile-network cutoff drill. The National Communications Commission plans exercises across 14 administrative regions in central and northern Taiwan on Aug 10 and 13 (2:30-3:00 pm) — mobile users limited to voice calls and SMS for 30 minutes, with fixed-line networks unaffected.

Taiwan's 2026 Han Kuang exercise runs from August 5 to 14, with live drills adding a mobile-network cutoff scenario for the first time. The National Communications Commission (NCC) plans a simultaneous exercise across 14 administrative regions in central and northern Taiwan — for a 30-minute window, mobile users will be limited to voice calls and SMS while mobile data is throttled or cut, simulating congestion or emergency management measures in wartime.

Central Taiwan runs on August 10, 2:30-3:00 pm across seven jurisdictions (Taichung, Chiayi city and county, Miaoli, Changhua, Nantou, Yunlin); northern Taiwan runs on August 13, same window, covering Taipei, New Taipei, Keelung, Taoyuan, Hsinchu city and county, Yilan. Defense Minister Wellington Koo said the exercise limits mobile data only; fixed-line networks are untouched. NCC will publish the detailed plan on July 22.

Urban resilience (air raid) drills run in parallel. This is Taiwan's first live test of throttled mobile networks under the Han Kuang framework — moving "wartime network degradation" from tabletop planning into street-level testing.

via Taipei Times / 联合早报
台灣漢光首次演練「行動網路斷網」|14 個縣市 30 分鐘手機只能打電話發短信