Walpole secured widespread support with his policy of avoiding war. He used his influence to prevent George II from entering the War of the Polish Succession in 1733, because it was a dispute between the Bourbons and the Habsburgs. He boasted, "There are 50,000 men slain in Europe this year, and not one Englishman." Walpole himself let others, especially his brother-in-law Lord Townshend, handle foreign policy until about 1726, then took charge. A major challenge for his administration was the royal role as simultaneous ruler of Hanover, a small German state that was opposed to Prussian supremacy. George I and George II saw a French alliance as the best way to neutralise Prussia. They forced a dramatic reversal of British foreign policy, which for centuries had seen France as England's greatest enemy. However, the bellicose trouble-maker King Louis XIV died in 1715, and the regents who ran France were preoccupied with internal affairs. King Louis XV came of age in 1726, and his elderly chief minister Cardinal Fleury collaborated informally with Walpole to prevent a major war and keep the peace. Both sides wanted peace, which allowed both countries enormous cost savings, and recovery from expensive wars.