Nobunaga's Ambition, a long-running grand-strategy game that only saw a few releases in the US since its inception, is bringing its latest installment, Nobunaga's Ambition: Sphere of Influence overseas. The series revolves around three major components, Creation, Diplomacy and War. Each one of those pillars relying on one another to expand your kingdom.
Koei Tecmo's Facebook announced that a PC, PS3 and PS4 version of Sphere of Influence will release in the US on September 1, 2015. Sadly, no word on a Vita release, which is generally common among the latest Koei games which released.
You can check out Koei's full post about the game as well some screenshots from the gameplay right here.