Trading with the Enemy Act [TWEA] Law and Legal Definition

Trading with the Enemy Act (TWEA) of 1917 is a United States law that restricts trade with countries hostile to the nation.

The TWEA authorized the use of economic sanctions against foreign nations, citizens and nationals of foreign countries, or other persons aiding a foreign country. The law gives the President the power to oversee or restrict any and all trade between the U.S. and its enemies in times of war.

The TWEA delegates to the president powers of economic warfare during a time of war or any other period of national emergency.