Korean Empire maintained their state until 1910.

The Empire of Austria and Kingdom of Hungary have always maintained separate parliaments.

The Russian Empire maintained only 14 secondary schools in the entire province.

The Empire maintains a cool relationship with its former province of Marienburg, the city of merchants.

The Empire has a wide variety of infantry and maintains the only standing professional army in the Old World.

The Empire therefore maintained a highly sophisticated military system, which relied on discipline, training, knowledge of tactics and a well-organized support system.

However, the Empire attained victory and maintained its supremacy over the rest of South America.

The ship landed at the single small spaceport on the entire planet, inside the walled administrative garrison the Empire maintained to keep an eye on its prisoners.

That's why they allow the Empire to maintain the Quarantine starcruiser the Desolation.

The Byzantine Empire allegedly maintained partial control of several cities and forts in southern Bessarabia until the 7th century.