The samurai were organized as a military force in 8th century Japan after the country looked to China's model. Samurai underwent training not just in combat but also poetry and art. By the 15th century, samurai strictly followed a code of serving their masters and demonstrating lack of fear of death in battle. Some notable samurai included Nobunaga, who fought for Japan's unification in the 16th century, and Saigo Takamori, considered the last samurai for leading a rebellion against modernization in the late 19th century. Samurai armor and their two swords, the katana and wakizashi, reinforced their elite warrior status.