Alien enemy

Also found in: Legal.
(Law) one who owes allegiance to a government at war with ours.
- Abbott.

See also: Alien

References in classic literature ?
'A new revolution, to defeat the alien enemy, is beckoning,' a young woman sings, 'bravely let us shield our motherland.'
enemy aliens (and it has, with the Alien Enemy Act of 1798).
There, Joe meets other humans -- some of whom, like a trenchcoated female assassin named Deacon, have survived by working with the Krael -- and begins to piece together a mystery that could give humans the chance they need to defeat their alien enemy.
The Alien Enemy Control Unit camp in Crystal City, Texas, was the program's only detention center specifically designed to accommodate families.
Bill Pullman as President Thomas Whitmore called on Earth's forces to unite against the alien enemy saying: "Perhaps it's fate that today is the Fourth of July, and you will once again be fighting for our freedom.
His public masses drew massive crowds that speeded up our growth to the strong social base of 10 million members of Solidarity, and faith gave us courage to confront the powerful alien enemy we faced.
AVENGERS ASSEMBLE (BBC1, Monday, 8pm) MANKIND is under threat from a new alien enemy and only the ultimate team of superheroes can save the day.
A declaration triggers the Alien Enemy Act, which gives the President substantial discretionary authority over nationals of an enemy state who are in the United States.
Set during the Cold War in 1962, The Bureau is investigating a series of mysterious attacks by an alien enemy. You play special agent William Carter, leading a squad to defend the human race.