Total War: Shogun 2 - Fall of the Samurai: The Obama Faction Pack

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

The Obama Faction Pack adds a new playable faction to Total War: SHOGUN 2 - Fall of the Samurai for use in single or multiplayer Campaign modes and Custom and Multiplayer Battles
With long experience of government and administration, the authoritarian people of Obama are unsurpassed in controlling people and trade.

Faction Traits:

Vigilance (+2 to the experience of defending garrison units)
Logistics (-10% to the upkeep cost of all land units)
Authority (+2 to repression across all provinces)
Overseeing (+5% increase in tax income)

History of the Obama

The Overseers

The Sakai clan, the rulers of Obama, are firm supporters of the Shogunate. The original Sakai lord of the domain, Sakai Tadakatsu, was one of the roju, or elders, under Tokugawa Ieyasu, the first Shogun. This was a hugely important post in the affairs of Japan, and Tadakatsu was correspondingly powerful within the Shogunate's administration. The Sakai clan could also claim to be related to the Minamoto clan, and to be cousins of both the Tokugawa and the Matsudaira clans. They are, then, very well connected. Their domain is worthy of them. The town of Obama had been a prosperous trading port, but its importance declined as Japan closed itself off from the outside world. It remained an important link to Ezo, modern Hokkaido.
Because of their long experience of government and administration, they are experts at managing the population of their lands. They receive a taxation bonus, and are highly efficient at repression. They also spend money wisely, and they pay less upkeep for land units. All their garrison troops are also of high quality.
It is, by the way, a complete coincidence that the 44th President of the United States has the same name as this domain.