'Civilization V' strategy: Oda Nobunaga lives by the sword

Continuing my series of strategy posts about Brave New World's modified civilizations, I'm going to take a look at strategies for Oda Nobunaga's Japan. Since Brave New World's Fall patch Japan was given additional buffs towards culture and coastal starts.

Japan is a series of four large island and numerous smaller islands that were formed by volcanoes. It has been inhabited since the upper paleolithic era (about 30 thousand years ago), and its people have lived in relative isolation for much of its history. It has gone through periods of war with its closest neighbors across the sea: China and Korea, and has had significant cultural influences from both, such native Shinto's two competing religions: Buddhism and Confucianism. Throughout most of Japanese history, the country has been in a feudal state, with regional populations being loyal to a warlord who is granted land and titles from the emperor (or "Shogun"). In-fighting between warlords was common, and power often ebbed and flowed between different clans and families.

Samurai Daimyo Oda Nobunaga helped Ashikaga Yoshiaki to reclaim the title of Shogun for his clan in 1568, and Nobunaga used the leader as a puppet to enable his own conquests. He was a brutal warrior who once set fire to an enemy complex, killing tens of thousands of civilian non-combatants (including women and children) in order to put down a rebellion of farmers and monks. He eventually attained military control of more than half of the territories of Japan on behalf of the Shogun. His successor, Hashiba Hideyoshi, would complete the unification of Japan 11 years after political and personal tensions lead to Nobunaga's assassination by a vassal clan.

In the 19th century, Japan's isolation finally ended and it began the process of rapidly modernizing. By the 1930's, Japan had developed into a modern military-industrial machine that was almost the technological equivalent of the United States and European powers. It became the dominant power in the Pacific prior to being defeated by the United States in the second half of World War II.