Treaties, although imperfect, are the glue that holds the world together. Treaties are the antithesis of war. The more countries that adhere to a treaty the more beneficial it is. But occasionally a rogue head of state comes along and prefers to ignore a treaty rather than bargain with other members of the treaty to make the treaty more to his liking. Adolf Hitler was such a head of state. He violated the Paris Peace Treaty of 1919 rather than work to change it as had one of his precedessors, Gustav Stresemann. He sought to overthrow that treaty by force of arms. And he lost.
Passivity and Aggression in Europe, to 1936