Why were France afraid of German rearmament?

France was afraid of German rearmament because it threatened the balance of power in Europe and revived memories of the devastation caused by World War I. The rearming of Germany, especially after the Treaty of Versailles imposed strict limitations on its military, raised concerns about potential aggression and territorial expansion. Additionally, France feared that a strong Germany would undermine its own security and influence in the region, prompting France to seek alliances and strengthen its defenses. The rearmament also contributed to growing tensions leading up to World War II.