The Helvetic Republic (, , ) was a sister republic of France that existed between 1798 and 1803, during the French Revolutionary Wars. It was created following the French invasion and the consequent dissolution of the Old Swiss Confederacy, marking the end of the "ancien régime" in Switzerland. Throughout its existence, the republic incorporated most of the territory of modern Switzerland, excluding the cantons of Geneva and Neuchâtel and the old Prince-Bishopric of Basel.