The Pentagon said Friday it was setting up a new task force under the US Navy to investigate UFO sightings.

With the creation of the Unidentified Aerial Phenomena Task Force (UAPTF), the Defense Department hopes "to improve its understanding of, and gain insight into, the nature and origins of UAPs," spokeswoman Susan Gough said in a statement.

Rather than little green alien invaders, the US military is actually concerned about "unidentified aerial phenomena" connected with its terrestrial adversaries.

Washington is particularly concerned about China's spying capabilities, using drones or other airborne means.

"The mission of the force is to detect, analyze and catalog UAPs that could potentially pose a threat to US ," Gough said.

The Pentagon take "any incursions by unauthorized aircraft into our training ranges or designated airspace very seriously and examine each report," she said.

"This includes examinations of incursions that are initially reported as UAP when the observer cannot immediately identify what he or she is observing."

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