The Aztecs were one of the great empires of the Americas and came to power through force of arms.
Japan's superbly trained soldiers, the Samurai, lived a life of devotion to honour and loyalty and to betray either required death.
The famous warrior-monks' philosophy blended rigorous military training with religion and technology.
The campaign to conquer paradise required the Hawaiian king Kamehameha to train his warriors for years in the arts of war.
Few things caused such awe in ancient Japan as the feared Ninja who struck at night with cunning ruthlessness.
An Indian nation that was forced from its homelands and who had to learn the art of war in order to survive.