President Donald Trump invoked the Alien Enemies Act of 1798 Saturday to target the designated foreign terrorist organization Tren de Aragua (TdA) just hours after a federal judge in Washington, D.C., ruled the law could not be used to deport five Venezuelans. 

The wartime law, which allows deportation of natives and citizens of an enemy nation without a hearing, has been invoked three times, during the War of 1812, World War I and World War II.

All Venezuelan citizens 14 years or older who are members of TdA, are within the U.S. and are not naturalized or lawful permanent residents of the U.S. may be apprehended, restrained, secured and removed as "alien enemies," according to a proclamation.