China initiated extensive live-fire military exercises, code-named 'Justice Mission 2025', around Taiwan starting December 29, 2025, markedly intensifying cross-strait tensions. These drills, which included troops, warships, fighter jets, and artillery units, simulated blockades of major ports, attacks on maritime targets, and fending off international interference. The People's Liberation Army (PLA) exercises were explicitly described as a "stern warning" to Taiwanese independence forces and external influences, following a record USD 11.1 billion arms package from the United States to Taipei and a statement by Japan's Prime Minister. The impact on civilian aviation was substantial, with Taiwan's transport and aviation authorities confirming that over 100,000 international air passengers, along with approximately 6,000 domestic travelers, were affected by flight cancellations, diversions, and delays due to designated danger zones around the island. These temporary no-fly areas intersected with some of East Asia's busiest air routes, forcing airlines to reroute flights and increasing travel times. Taiwan's Ministry of National Defense strongly condemned Beijing's actions as "irrational provocations" that undermine regional peace and stability, and placed its armed forces on high alert to defend the island. Analysts noted that the scale and positioning of these drills blurred the lines between routine training and preparation for a potential real-world operation, demonstrating China's capacity for a quasi-blockade and exerting psychological pressure. This event represents China's sixth major war game around Taiwan since 2022, signaling a heightened and more aggressive posture in the region.