Final answer:
The document containing the text in the box is the Zimmermann Telegram, which was a communication sent during World War I proposing a military alliance between Germany and Mexico.
Step-by-step explanation:
The document containing the text in the box is known as the Zimmermann Telegram. The Zimmermann Telegram was a communication sent by the German Foreign Secretary Arthur Zimmermann to the German ambassador in Mexico during World War I. In the telegram, Zimmermann proposed a military alliance between Germany and Mexico, suggesting that Mexico should join Germany in war against the United States. This alliance was based on the condition that Mexico would help Germany in the war and in return, Germany would support Mexico in reconquering the lost territories of Texas, New Mexico, and Arizona.
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