Corsica

The Corsican Republic was a short-lived state that existed on the island of Corsica in 1755-1769. It was founded by Pasquale Paoli, who led a nationalist movement to gain independence from Genoa, which had controlled the island for centuries. The republic had its own constitution, army, and government, and it was recognized by some European powers, including France. However, it was eventually conquered by the French under King Louis XV, and the island was annexed to France in 1769, ending the brief existence of the Corsican Republic.

Description
After the Seven years' war Pasquale Paoli, the leader of the Corsican independence movement, attempted to strengthen the Republic's economy, administration and military. He also sought allies among the European powers and managed to keep the Island independent but the French Government sees the island as a threat will you be able to make them change their mind or will you get annexed by the neigbor?