Taiwan is set to launch its largest live-fire war games in years on August 5, with Defense Minister Wellington Koo (顧立雄) revealing in an exclusive briefing that American military assistance to the island is far more extensive than anything publicly disclosed.
Taiwan's Doctrine Shifts From Beach Defense to Multi-Domain Denial
Han Kuang 42, Taiwan's most ambitious annual exercise, runs through August 14 across four phases and nine training items. The drill marks a formal departure from the island's traditional "beach decisive battle" doctrine — holding an invading force at the shoreline — toward what planners now call "multi-domain denial," a concept that weaves together air, sea, land, cyber, and civilian assets to deny a potential occupier any path to a clean military objective.
Chief of the General Staff Admiral Mei Chia-shu (梅家樹) set the tone during a pre-exercise "spiritual combat readiness week" address. "What truly deters enemies is no longer symbolic weapons," Mei told troops, "but sustainable combat strength and resilience."
Lt. Gen. Hou Chia-lun (侯嘉倫), the Ministry of National Defense's deputy chief of staff for operations and planning, spelled out what makes this year's drill different from its predecessors. Rather than following pre-scripted scenarios, Han Kuang 42 will deliberately inject improvised, unannounced crises — disrupted communications, shifting resources, evolving enemy tactics — to force commanders to adapt under real pressure. "This is the most critical element of combat-realistic training," Hou said. He added that the overall defense plan has undergone major revision: "In the past it was always beach decisive battle. Now we have moved to multi-domain denial."
Koo Credits INDO-PACOM for Taiwan's Evolving Defense Capacity
When asked precisely what US Pacific Command — known as INDO-PACOM — has done to sharpen Taiwan's capabilities, Defense Minister Koo was candid but careful. Long-term, multi-level military exchanges are ongoing across every dimension of the relationship, he said. "I think it's even more than what the outside world imagines."
Koo, who played a central role in developing Taiwan's whole-of-society defense policy before moving to the defense ministry, described Taiwan's gratitude toward INDO-PACOM in expansive terms. "The overall defense effort is not just what you can see on the surface," he said. "Pacific Command maintains peace and security across the Indo-Pacific and treats Taiwan as a critical hub in the first island chain, assisting Taiwan's defense capability at every level." When pressed for specifics, Koo declined to go further. The details, he signaled, would remain unspoken.
Lt. Gen. Huang Wen-chi (黃文啓), director of the ministry's strategic planning bureau, offered a revealing if indirect measure of US influence: compare how Taiwan's armed forces operated five years ago with how they operate today. "You can probably sense what the military has learned," he said. Some aspects of the exchange remain classified, Huang noted, while others — such as the annual rotation of officers through American military branch schools — are a matter of public record.
Lt. Gen. Sun Li-fang (孫立方), director of the ministry's political affairs office, said the lessons absorbed from allied combat experience are systematically folded back into Taiwan's own doctrine. Year-on-year changes across Han Kuang exercises — from 2024 to 2025 to the 2026 edition — reflect that ongoing integration, touching areas from combat-realistic training and decentralized command to distributed control systems. "You cannot say all of this came from the Americans," Sun acknowledged, "but it all represents how the military has absorbed real combat experience and adjusted its tactics accordingly."
Whole-of-Society Resilience Replaces Military-Only Defense Planning
One of the most significant shifts built into Han Kuang 42 is the explicit integration of civilian institutions into the war game itself. Vice Chief of the General Staff Gen. Huang Chih-wei (黃志偉) stressed that resilience cannot belong to the armed forces alone — it must encompass logistics networks, medical systems, manpower pipelines, and cross-regional mobility. This year's exercise spotlights two civilian pillars in particular: large-scale medical mobilization and military-industrial mobilization, both viewed as essential to any prolonged defense scenario.
Sun framed Taiwan's strategic posture in deliberately unbounded terms. "The question for us is not how many days we can hold out," he said. "Our position is: we will not allow the PLA to achieve its desired combat objectives — no matter how long you fight, you will not succeed." The goal, he added, is preparedness for day one of a conflict, for day 14, and for month-long contingencies alike.
Koo put Taiwan's core conviction plainly: "When the PLA launches a full-scale invasion, it will ultimately fail." Everything in Taiwan's training cycle — from force preservation at the outset to deep-strike operations in the final phase — is designed to make that outcome certain. （Related： Han Kuang 42 | Taiwan Tests Nine Combat Scenarios in Annual Live Drill ｜ Latest ）
