Taiwan Tracks Chinese Military Activity and Tests First Homegrown Submarine

The Ministry of National Defence of Taiwan reported a series of Chinese military incursions between June 8 and June 10, 2026, as the People's Liberation Army (PLA) increased activity around the island. On June 8, Taiwan detected two PLA aircraft sorties in its eastern Air Defense Identification Zone (ADIZ), six naval vessels, and seven official ships. This activity continued on June 9 with one aircraft sortie entering the southeastern ADIZ, alongside six naval vessels and nine official ships.

By June 10, the ministry detected six People's Liberation Army Navy vessels and 10 official ships operating around its territory. In all instances, the Republic of China Armed Forces monitored and responded to the incursions. These events occur as China continues to assert its claim that Taiwan is an inseparable part of its territory.

Simultaneously, Taiwan advanced its own defense capabilities. Its first domestically built submarine departed the Port of Kaohsiung earlier in June for its 15th overall sea trial, which included its ninth submerged-navigation test. Meanwhile, U.S. President Donald Trump stated that his administration would work on the Taiwan problem.