Answer: It's just a tradition
Explanation: This is just a tradition that President Roosevelt started there really isn't much to it besides it is a tradition. Even Donald Trump nowadays does it and keeps the tradition going. Hope this helps. ;)
The Zimmerman telegraph, was a telegraph from Germany to Mexico proposing an alliance in which Germany would give the land that Mexico lost to the United States if the Mexican people would fight the United States and keep them out of the war
Well they both helped to modernize/industrialize the U.S, so it depends which view point you would like to take. They stole the plans from england, who had successfully monopolized industrialization for almost a century, who would be upset at this loss of control and therefore business. However an American would probably be thankful for the industry that blossomed as a result of these actions.
