Respuesta :
After the sinking of the Lusitania the United States responded to an attack on a French passenger ship by issuing the Zimmerman Note and declaring war on Mexico.
Their fight with Germany didn't start immediately - first they fought in Mexico before officially entering the war.
Their fight with Germany didn't start immediately - first they fought in Mexico before officially entering the war.
Answer:
Issuing Germany an ultimatum and accepting the Sussex Pledge
Explanation: I took the quiz