Which event involved Germany proposing to Mexico that they attack the United States?

The event in which Germany proposed to Mexico that they attack the United States is the Zimmerman Telegram. This secret diplomatic communication was sent by German Foreign Minister Arthur Zimmermann in January 1917, during World War I. In the message, Germany promised Mexico the territories of Texas, New Mexico, and Arizona if Mexico joined the war on the side of the Central Powers and against the Allies, particularly the United States.

The impact of the Zimmerman Telegram was significant; it played a crucial role in turning public opinion in the United States against Germany. The revelation of the telegram inflamed nationalist sentiments and contributed to the U.S. decision to enter the war in April 1917. Understanding this context is crucial, as the Zimmerman Telegram exemplified the heightened tensions between the U.S. and Germany at that time and the broader implications of alliances during the war.

The other options refer to different historical events: the Bolshevik Telegram does not exist in the context of German proposals to Mexico; the Paris Peace Conference was about negotiating the peace following the war; and the Munich Agreement dealt with the issues leading up to World War II, focusing on the appeasement of Hitler rather than World War I engagements.