What was the cause of international concern following the Stresa Front's formation in April 1935?

The formation of the Stresa Front in April 1935 was primarily driven by the international community's alarm regarding Germany's aggressive rearmament under Adolf Hitler. The Stresa Front was a coalition formed by France, Britain, and Italy aimed at opposing German expansion and rearmament, which violated the Treaty of Versailles. The front represented an attempt to maintain the post-World War I balance of power and prevent Germany from re-establishing itself as a dominant military force in Europe.

Germany's rearmament not only threatened the territorial integrity of its neighbors but also raised fears of renewed militarism that could lead to conflict on the continent. The actions taken by Hitler, which included the reintroduction of conscription and the expansion of the military, were seen as direct challenges to the established order and prompted collective concern among the nations in the Stresa Front. The emphasis on militarism and the possibility of renewed warfare made this issue particularly urgent and worrying for countries still recovering from World War I.

This context underscored the anxiety surrounding Germany's military ambitions and the necessity of a unified response from Western powers, making the concern over Germany's aggressive rearmament and its implications for peace in Europe the core issue following the formation of the Stresa