Taiwan's Ministry of National Defense detected two sorties of People's Liberation Army aircraft, nine People's Liberation Army Navy vessels, and two official ships operating around Taiwan up until 6 a.m. UTC+8 on December 29, 2025, stating that Republic of China Armed Forces monitored the situation and responded, according to an official post on X during the reporting window. A post on X described an image as a land-based unmanned aerial vehicle electromagnetic catapult, according to RupprechtDeino between 8:15 a.m. and 10:15 a.m. UTC on December 29. These detections occur amid China's ongoing Justice Mission 2025 military drills around Taiwan, including prior joint exercise zones mapped by Chinese state media earlier on December 29, as reported by TaiwanMonitor on X. China's Coast Guard also released a 'Patrol and Control' poster earlier depicting vessels encircling Taiwan, according to previous reports from TaiwanMonitor, while Taiwan's Ministry of National Defense stated forces remain on high alert.