What happened to the European map from 1837 to Pre world war I?

Four empires collapsed due to the war, old countries were abolished, new ones were formed, boundaries were redrawn, international organizations were established, and many new and old ideologies took a firm hold in people's minds.

Explanation:

During this time, empires such as the Russian Empire and the Austro-Hungarian empire both fell parts of the former empires were seperated into different countries and it redrew the continent of Europe as all these new countries were being formed, new borders were being formed also meaning that a new map had to be made for this purpose.

the french attack on germany was caused by the military alliance

he didn't think it was ethically wrong. he thought it was not going to work and it was not going to be of any assistance. he wrote about that in his memoirs.