Defcon Alerts Threat Monitor

Defcon Alerts Threat Monitor

Asia

Chinese Coast Guard Vessels Enter Japanese Territorial Waters Near Senkaku Islands Amid Sovereignty Dispute

Four Chinese Coast Guard vessels entered Japan's territorial waters near the Senkaku Islands on February 10, according to Japan Coast Guard reports, while China described the activity as patrols in it

Defcon Level's avatar
Donald Standeford's avatar
Defcon Level and Donald Standeford
Feb 11, 2026
∙ Paid

EAST CHINA SEA — Four Chinese Coast Guard vessels entered Japan's territorial waters near the Senkaku Islands on February 10, according to Japan Coast Guard reports, while China described the activity as patrols in its territorial waters around the Diaoyu Islands.

Japanese Coast Guard vessel patrolling the waters

Share

Taiwan Detects Record 130 Chinese Military Aircraft in Second-Largest Incursion During "Justice Mission 2025" Drills

Taiwan Detects Record 130 Chinese Military Aircraft in Second-Largest Incursion During "Justice Mission 2025" Drills

Defcon Level and Donald Standeford
·
December 30, 2025
Read full story
China Launches 'Justice Mission 2025' Military Drills Encircling Taiwan Amid Escalating Tensions

China Launches 'Justice Mission 2025' Military Drills Encircling Taiwan Amid Escalating Tensions

Defcon Level and Donald Standeford
·
December 29, 2025
Read full story
Japan Protests, China Denies Fighter Jet Radar Locks on ASDF Aircraft Amid Pacific Tensions

Japan Protests, China Denies Fighter Jet Radar Locks on ASDF Aircraft Amid Pacific Tensions

Defcon Level and Donald Standeford
·
December 8, 2025
Read full story

More Alerts On Asia Region

Two vessels were observed west of Uotsuri Island, the largest in the chain, shortly after 4 p.m. within the 12-nautical-mile zone.

The other two were noted near Taisho, the easternmost islet. The vessels departed after approximately two hours, with those near Uotsuri exiting southwest of Minamikojima and the others southeast of Taisho.

Senkaku Diaoyu Tiaoyu Islands. Credit: Jackopoid, CC BY-SA 3.0, via Wikimedia

Refer a friend

Japan Coast Guard patrol ships issued warnings via electronic message boards and loudspeakers. The vessels were not pursuing Japanese fishing boats during this event.

The Senkaku Islands consist of five uninhabited islets and three reefs, located approximately 170 kilometers northeast of Taiwan and 410 kilometers west of Okinawa. Surrounding areas hold potential hydrocarbon resources.

Territorial Waters Entry Claims, Analysis:

This post is for paid subscribers

Already a paid subscriber? Sign in
Donald Standeford's avatar
A guest post by
Donald Standeford
Founder of The Standeford Journal. I'm an American independent investigative journalist, intel/geopolitical analyst, and world traveler.
Subscribe to Donald
© 2026 Defcon Level · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture