Seven Years%27 War
French policy was, moreover, complicated by the existence of the le Secret du roi—a system of private diplomacy conducted by King Louis XV. Unbeknownst to his foreign minister, Louis had established a network of agents throughout Europe with the goal of pursuing personal political objectives that were often at odds with France’s publicly stated policies. Louis’s goals for le Secret du roi included an attempt to win the Polish crown for his kinsman Louis François de Bourbon, prince de Conti, and the maintenance of Poland, Sweden, and Turkey as French client states in opposition to Russian and Austrian interests.

Q: What was King Louis XV's secret ambition for Sweden and Turkey?
Sweden, and Turkey as French client states in opposition to Russian and Austrian interests