- The War of Austrian Succession
- Began in 1740 and ended in 1748 with the signing of the Treaty of Aix-la-Chapelle in October 1748
- France and Prussia vs. Britain and Austria
- Caused due a to dispute over whether Maria Theresa of Austria should succeed as ruler of the Hapsburg Empire.
- Although France was victorious, it never gained much from the war due to Louis returning all captured land back to Austria in attempt to improve foreign relations.