Samurai (侍 or (rarely) bush 武士) was a term used for the noble military class in ancient Japan. Samurai is derived from the ancient Japanese word saburau, which means 'to serve'. War occupies an important place in Japanese culture. The important clans of the country have faced each other many times. The fact that only 20% of Japanese land is suitable for agriculture has caused a dispute over land. Since land wars also require both religious and physical development and methods of struggle, the development of the Samurai is also based on this phenomenon.