Reminisce on vanity of Nations!

These were the famous words of soldiers marching into Russia singing:

Let everything go to pieces, We march on
For today Germany is ours;
Tomorrow the whole world!

These have taken from the book "Why Nations go to war" by John G. Stoessinger.
What happened in that war, its catastrophes are explicitly known by everyone today. And i was just imagining that sense of profound vanity that brought Hitler and his subservient a scourging defeat.