The Pentagon's new United States Space Force is not Star Trek's Starfleet Command, but their logos bear a striking similarity.

Key points: Mr Trump unveiled the new Space Force logo on Twitter, immediately drawing comparisons to the Starfleet Command insignia

Mr Trump unveiled the new Space Force logo on Twitter, immediately drawing comparisons to the Starfleet Command insignia Star Trek's George Takei replied to Mr Trump's tweet, saying: "We are expecting some royalties from this"

Star Trek's George Takei replied to Mr Trump's tweet, saying: "We are expecting some royalties from this" Space Force was officially created by Mr Trump last month

US President Donald Trump has unveiled the Space Force logo, writing on Twitter that he had consulted with military leaders and designers before presenting the blue-and-white symbol, which features an arrowhead shape centred on a planetary background and encircled by the words, "United States Space Force" and "Department of the Air Force".

The logo, which bears the date 2019 in Roman numerals, is also similar in design to that of Air Force Space Command, from which Space Force was created by legislation that Mr Trump signed last month.

Space Force is the first new US military service since the Air Force was created in 1947.

It is meant mainly to improve protection of US satellites and other space assets, rather than to put troops in orbit to conduct combat in outer space.

Mr Trump wanted Space Force to be a separate but equal service, but it was made part of the Department of the Air Force. ( AP: Kevin Wolf )

The idea became a regular applause line for Mr Trump at his political rallies.

He originally wanted a Space Force that was "separate but equal" to the Army, Navy and Air Force, but instead, Congress made it part of the Department of the Air Force.

"After consultation with our Great Military Leaders, designers, and others, I am pleased to present the new logo for the United States Space Force, the Sixth Branch of our Magnificent Military!" Mr Trump wrote.

George Takei, who played Mr Sulu in the original Star Trek TV series and films, tweeted in response: "Ahem. We are expecting some royalties from this."

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Earlier this month, the US Space Force was widely mocked for releasing an image of its official uniform, which featured standard army woodland camouflage.

Space Force received backlash after the uniforms were revealed. ( Twitter: United States Space Force )

AP/ABC