The answer is Mudslinging
The Crusades & the Inventing of the printing press. Additionally, the population losses sustained in Europe.
The United States<span> later declared </span>war<span> on German ally Austria-Hungary on ... the primary motivation behind Wilson's decision to </span>lead the United States<span> into World </span>War<span> I. ... However, he refrained from asking for a </span>declaration of war<span> because he ...</span>