This is the best summary I could come up with:

YONAGUNI, Japan, Nov 12 (Reuters) - Japan on Sunday conducted a tsunami evacuation drill on its westernmost island, an exercise that could also help residents respond to an emergency arising from any attempt by China to take control of nearby self-ruled Taiwan, an official said.

But SDF helicopters and landing craft from ships that had sailed more than 1,000 km (620 miles) from the main Japanese islands were unable to join the exercise because of strong winds.

We have to think about the worst thing that can happen and plan for that," the mayor of Yonaguni, Kenichi Itokazu, told officials at the island’s town hall at the start of the drill.

In August last year, China fired missiles into nearby waters in response to a visit to Taiwan by the then U.S. House speaker, Nancy Pelosi.

Concern over China’s increased military activity, as well as worry that Russia’s attack on Ukraine could embolden Beijing to strike Taiwan, prompted Prime Minister Fumio Kishida to unveil a plan to double defence spending over the next five years.

About 180 Yonaguni residents came to the island’s only junior high school to watch the first such exercise in four years.

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