The Army’s top general wants cadets to prepare to fight “little green men.”

Army Chief of Staff Gen. Mark Milley made the remark April 21 in a speech to celebrate the 100th anniversary of Norwich University’s ROTC program, The Army Times reported.

“You’ll be dealing with terrorists, you’ll be dealing with hybrid armies, you’ll be dealing with little green men, you’ll be dealing with tribes, you’re going to be dealing with it all, and you’re going to be dealing with it simultaneously,” Milley said.

But Milley (probably) wasn’t referencing a close encounter or new intel from the secretive Area 51 complex.

Military officials told The Army Times that “little green men” is typically used to refer to foreign troops who dress in green attire instead of military uniforms.

“It does not mean fighting troops from outer space,” an official said.

But a denial from a government official isn’t likely to sway those who believe the truth is out there.