China announced the completion of approximately 40 days [1] of combat training for the aircraft carrier Liaoning on June 22 [4].

The exercises signal Beijing's intent to project naval power further into the West Pacific, raising tensions with Japan over maritime security and territorial boundaries.

Chinese naval spokesperson Wang Xuemeng said Japanese Self-Defense Force aircraft interfered with the normal training of the Liaoning fleet [2]. The training took place across the South China Sea and the West Pacific, including areas approximately 1,000 kilometers [3] southwest of Okinotorishima.

Japan's Ministry of Defense monitored the activity closely throughout the period. Defense Minister Shinjiro Koizumi said the Liaoning navigated the waters southwest of Okinotorishima on May 25, during which time the ministry confirmed approximately 170 [1] take-offs and landings of fighter jets and other aircraft [0].

While Chinese officials framed the exercises as a means to improve the mission-execution capabilities of the carrier strike group, they said Japanese responses were provocations [2]. The Japanese government maintains that its monitoring activities are standard procedure for maintaining regional stability.

Reports regarding the exact scope of the drills varied. Some sources indicated the Liaoning operated alone, while other reports suggested two Chinese carriers participated in the West Pacific maneuvers. Similarly, while some reports placed the carrier near the Miyako Strait, the Japanese Ministry of Defense focused on activity in the open Pacific [3].

“Japanese Self-Defense Force aircraft interfered with the normal training of the Liaoning fleet.”

The deployment of the Liaoning into the West Pacific and the high frequency of flight operations demonstrate China's growing ability to sustain long-term carrier presence outside its immediate coastal waters. The mutual accusations of interference and provocation highlight the precarious security environment near Okinotorishima, where both nations are asserting their maritime interests.