The art of and effectively maneuvering in a world of power politics among sovereign states is the emphasis of classical realists.

The art of statecraft is a way to achieve mutual agreements between states without affecting the sovereignty of a nation, so when diplomatic relations are applied effectively and impartially and strengthened ties are created between two or more nations they become an art or tool of fundamental development in political relations.

I am not sure about in Italy but it was 75 and 100 million people worldwide. 

Hope this helps. Good luck :)