"This kind of thing" included the incarceration of 1,800 Japanese,1,500 Germans, as well as smaller numbers of Italians and other Europeans at Fort Lincoln during the war years, under the Alien Enemy Control Program.

VOA: standard.2010.06.22

An alien bug that causes diarrhoea, for instance, is as much an enemy of the microbiome as of the host.

ECONOMIST: Modern medicine

"XCOM: Enemy Unknown" is a science fiction, strategy game pitting Earth against an invading alien force.

CNN: Two games in one in 'XCOM: Enemy Unknown'