What could have been done by the international community to prevent WW2 and the rise of hitlers regime?

From the beginning it was clear that Hitler's goal was to conquer the world. ... While it might seem that everything has already been said about World War II ... Humanity could have been spared the terrible suffering and trauma of the war ... that the events associated with his rule weren't sporadic or localized.

b. the passage of the equal rights amendment  

explanation:

this mean that anything that someone else could do they could do