Respuesta :
The U.S. joined to stop the sinking of U. S. merchant ships, the decision was justified seeing the possible outcome if they hadn’t.
Answer:
The United states desperately tried to remain neutral in WW1, however their alliance to Britian and the U.S ties to helping British propaganda were a problem. U.S trade ships carrying military equipment or not were sunk in a German U-Boat blockade, Germany also sent the Zimmermann telegraph which called for Mexico to go to war against the United States. However the U.S intercepted this telegraph and got a heads up on what might've happened.
(Mexico declined as they were in a civil war and Germany's promise of financial support were probably too good to be true)
Explanation: