The Ryukyu Kingdom was once a nation in East Asia.

He was dreaming of the restoration of his country.

The Islamic State is an extremist organization spread across the Middle East.

We should always remember the power of Kannon in difficult times.

He is undergoing training for extravehicular activity.

He engaged in an extravehicular activity from the spaceship.

He is a foreigner, but he can speak Japanese fluently.

I have been to Outer Mongolia.

Coitus interruptus is one method of contraception, but it is not completely reliable.

This book explains in detail about the use of foreign words.