Geostrategic Daily

The Maritime Executive · 21 October 2026

The Defensive Alliance to Deter Chinese Maritime Expansion is Strengthening

Exercise Keen Sword began and runs until October 29, principally involving 45,000 Japanese and 12,000 US troops, with seven other Asian and European nations participating, including France, Germany, the Netherlands, New Zealand and the Philippines for the first time; South Korea is attending as an observer. The exercise focuses on Japan’s southwestern islands and the Kuril Islands. Separately, Taiwan and the Philippines are deepening ties: Taiwan’s Coast Guard Administration plans a training-ship port call in the Philippines in October next year, the first such visit since 1974, and the two sides intend to improve joint surveillance in the Bashi Channel.

Why it matters: The developments indicate that maritime security cooperation among Asian states is expanding in response to Chinese maritime expansion.

great power rivalry · geostrategy military basing

Record

Source
The Maritime Executive (tier 1)
Published
21 October 2026
Link
https://maritime-executive.com/article/the-defensive-alliance-to-deter-chinese-maritime-expansion-is-strengthening
Content depth
full
Regions
americas, asia-pacific, europe-eurasia-mena
Subregions
china, japan-korea, us, eu
Actors
China, Japan, United States, France, Germany, Netherlands, New Zealand, Philippines
Edition
2026-10-22

Grounding

Verbatim spans from the source text that support the summary above.

Exercise Keen Sword has commenced and is running until October 29.
45,000 Japanese and 12,000 US troops
the first such visit since 1974