China Coast Guard Patrol Japan-Held Islands Almost Daily As Tensions Flare
What Happened?
China’s coast guard patrolled around the Japan-administered islands in the East China Sea nearly every day in 2025, a stark signal of rising regional maritime tensions.
According to Chinese officials, **Coast Guard vessels operated in the waters near the disputed islands known as the Senkaku in Japan and Diaoyu in China on 357 out of 365 days last year.
Why It Matters?
The East China Sea lies within the so-called first island chain, a strategic maritime belt that plays a key role in U.S.-Japan security cooperation and broader balance-of-power dynamics in the Asia-Pacific.
Daily patrols reinforce China’s claims in contested maritime space and challenge Japan’s administration of the islands — complicating diplomatic ties and raising the risk of incidents at sea.