My brother is a member of the Japan Maritime Self-Defense Force.

This festival is held every year.

This island is located within our country's territorial waters.

He was enjoying fishing on the sea.

The navy patrols the sea area every day.

The Maritime Self-Defense Force is patrolling territorial waters.

The Self-Defense Forces are working to protect the safety of Japan.

That country is suspected of violating territorial waters.

Their ship intruded into our territorial waters.

The corvette is responsible for maritime security duties.