Passed after the U.S joined WW1, The Espionage Act made a crime any actions of giving information of the U.S. army to enemy countries for their success.
The Espionage Act of 1917 is a United States federal law passed on June 15, 1917, shortly after the U.S. entry into World War I. It has been amended numerous times over the years. It was originally found in Title 50 of the U.S. Code (War) but is now found under Title 18, Crime.
