The U.S. and Russia might be sizing each other up for a World War here on Earth. But a bigger, deadlier enemy seems to have caught the attention of both the superpowers.

The two superpowers aim to join forces against a massive alien UFO fleet, which was accordingly moving towards earth and might be in our skies in September 2017, reported the Inquistr.

The news began its rounds when a youtube video surfaced purportedly showing Russian President Putin secretly meeting US Vice President Joe Biden in a hushed up meeting.

The clip surfaced on Thursday, Oct. 27, titled "US warns Russia 'Aliens on Their Way, Will Be Here in 2017,'" reported the Daily Star.

The footage talks about Biden carrying a message from Obama to Putin, asking for Russia's cooperation in creating a missile defense system that covers the entire planet to protect earth from an impending invasion from outer space, said the Daily star.

According to the Inquistr, the narrator of the footage who goes by the name UFOmania and has a mechanical feminine voice, goes on to suggest that President Putin suggested to Vice President Biden that the invasion may bear likelihood to 1561 when many hundreds of UFO's battled each other over the skies of Nuremberg, Germany as per reports at the time.

The Inquistr goes on to state that the six-minute video also talks about the famous Roswell UFO crash in 1949 and the assassination of former US president John F.Kennedy after he had investigated into the UFO phenomenon, and asked for more information on the matter from the Central Investigation Agencies.

The UFO invasion video's narrator also points to the warning that former US president Ronald Reagan had given Secretary General Mikhail Gorbachev and to the United Nations, that the world will unite only if there is an alien invasion, reported the Inquistr. This is relevant today because of the massive build-up of weapons on Russia's borders by NATO, and vice versa.