TAIPEI: The two Chinese aircraft carriers spotted conducting simultaneous operations in the Pacific for the first time send a political message about the country’s “expansionist” aims, Taiwan Defense Minister Wellington Koo said on Wednesday.

Japan’s defense minister said the previous day that the appearance of the Chinese aircraft carriers signified Beijing’s intention to further widen its capabilities beyond its borders.

Koo said the armed forces had a “full grasp” of the carriers’ movements.

“Crossing from the first island chain into the second island chain sends a definite political message and their expansionist nature can be seen,” he told reporters in Taipei.

The first island chain refers to an area that runs from Japan down to Taiwan, the Philippines and Borneo, while the second island chain spreads further out into the Pacific to include places like the US territory of Guam.

China’s navy, which has been honing its abilities to operate farther and farther from the country’s coast, said on Tuesday the carrier operations were a “routine training” exercise that did not target specific countries or regions. China operates two carriers, with a third undergoing sea trials.

Taiwan, which China views as its own territory, keeps a close watch on Chinese military movements given the regular drills and war games Beijing stages around the island, and has been modernizing its weapons to better face the People’s Liberation Army.

Taiwan Air Force Chief of Staff Lee Ching-jan, speaking to lawmakers later on Wednesday, said a dozen or so of 66 Lockheed Martin F-16V fighter jets ordered from the United States should arrive this year, with the rest in 2026.

“The US side was optimistic about next year’s scheduled delivery at last month’s meeting on the project, and was very optimistic about the delivery of more than 10 aircraft this year,” he said.

Taiwan has complained about delivery delays for the jets, which have advanced avionics, weapons and radar systems to better face down the Chinese air force, including its J-20 stealth fighter.

Since May, China has been flexing its muscles by sending an unusually large number of naval and coast guard vessels through a swathe of East Asian waters, according to security documents and officials, in moves that have unnerved regional capitals.

Japan’s defense ministry confirmed the two carriers, Liaoning and Shandong, were operating in separate areas of the Pacific on Saturday, both near remote southern islands belonging to Japan.

Earlier, Japan said the Liaoning sailed within its exclusive economic zone near Minamitorishima, a remote island east of Iwo Jima.