07/29/1937
https://www.presidency.ucsb.edu...
"By virtue of the authority vested in me as President of the United States, it is hereby ordered as follows:"
"Officers of the Foreign Service shall familiarize themselves with those provisions of the laws of the United States which relate to the acquisition and loss of American nationality."
"I must take all necessary measures to ensure the safety of the Western Hemisphere."
"It is the announced policy of the Government of the United States to undertake to join with the other Nations of the Western Hemisphere in the defense of the New World against any attempt at aggressio..."