This castle has existed since the medieval times.

He belongs to the defense force.

He is learning karate for self-defence.

He is the best defender of our team.

They began preparations to siege the castle.

They besieged the enemy's castle.

They defended in the castle against the enemy's attack.

My dream is to visit the Imperial Palace.

I am planning to go to Seoul next week.

I visited Partizansk, a historical place.