How a Realist Hero Rebuilt the Kingdom (Light Novel) Vol. 16

"In the two years since the Spirit King's Curse shook the world, the Kingdom of Friedonia has prepared for impending chaos...but it's not the only one making moves. The Great Tiger Kingdom of Haan has brought to heel two more powerful countries, and now Fuuga declares war on mankind's greatest nation: the Gran Chaos Empire. Will the Kingdom abandon its ally the Empire to steer clear of Fuuga's wrath, or take up arms and risk everything?"--Provided by publisher.