Germany use of to eventually draw the united states into the great war?

Unrestricted submarine warfare

Germany used this and the Zimmermann Telegram to eventually draw the United States into the war.  The Zimmermann Telegram was a secret diplomatic communication that said Germany and Mexico were in an alliance.  Unrestricted submarine warfare is where submarines would sink vessels without warning, instead of following the cruiser rules.

the answer is aristophanes comedies.

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.