How realistic were the measures to suppress aggression enshrined in the Charter of the League of Nations?

The League of Nations was formed in 1919 after the First World War. It was called upon to defend the established peace and suppress military aggression. It contained articles for violation of the order and the peace. In most cases, sanctions and fines were imposed on the aggressor country. She could have fallen into world isolation. In an extreme case, it could include peacekeeping troops of representatives of the League of Nations. But the system was not perfect, because it did not succeed in suppressing the aggression of Germany in the first half of the 20th century.