Liaoning Carrier Group Enters Philippine Sea Ahead of US-Japan Keen Sword Exercise

Key points

• The Liaoning Carrier Strike Group, including cruisers Anshan and Wuxi and destroyer Huainen, is operating in the Philippine Sea east of Taiwan and the Luzon Strait.
• Japan’s Maritime Self-Defense Force and Air Self-Defense Force are monitoring the group, with JASDF fighters scrambling in response to Chinese fighter operations.
• The deployment occurs five days before the start of the Keen Sword 27 exercise, which involves the US Navy’s Theodore Roosevelt Carrier Strike Group and Japanese missile systems on Okinawa.
• China’s Ministry of National Defense stated the drills are part of an annual plan to improve capabilities and are not directed against any specific country.
• This is the second deployment of the Liaoning group this year, following a 40-day exercise in May and June.

Background

Recent tensions in the Western Pacific have been heightened by previous incidents, including a J-15 fighter from the Liaoning using radar on a Japanese F-15 in December 2025. Additionally, Taiwan President Lai Ching-te recently emphasized strengthening self-defense to deter war, a stance denounced by Chinese officials. While the current drills are not around Taiwan, they occur amid broader regional tensions and US-Japan military cooperation.

How outlets are covering it

USNI News and nippon.com both report the Liaoning’s movement and China’s official statement that the drills are routine. However, nippon.com explicitly suggests the drills are aimed at checking US and Japan forces, particularly given the potential deployment of a US carrier for Taiwan contingencies. USNI News focuses on the logistical details of the Japanese surveillance and the timing relative to the Keen Sword exercise, noting that the US Marine Corps will deploy anti-ship systems to Ishigaki and Yonaguni Islands. Both sources agree on the location and composition of the Chinese strike group but differ in their interpretation of the strategic intent behind the timing.

Why it matters

The proximity of the Chinese carrier group to Japanese islands and the timing relative to major US-Japan exercises signals a potential escalation in regional military posturing. It tests the readiness of both Chinese and US-Japanese forces and may influence diplomatic and military calculations regarding the Taiwan Strait and broader Western Pacific security.

What to watch

The Liaoning group’s duration and specific operational area remain unannounced. The Keen Sword 27 exercise is set to begin in five days, with joint anti-ship combat training planned near Kyushu and Okinawa. China is also conducting separate coastal drills in five areas, which are set to conclude on Saturday, though none are currently around Taiwan.