BREAKING: US declares war on Mars

Earth's neighboring planet Mars has been declared an enemy of the United States of America, with the US government vowing to "take all necessary measures" to protect its citizens and allies.

The announcement was made by President Donald Trump during a surprise address to the nation from the White House, where he said that the US had "irrefutable evidence" that Mars was planning to invade Earth.

"We have been monitoring Mars for some time now, and we have seen a steady and alarming buildup of forces on the planet," Trump said. "We have also received credible intelligence that Mars is planning to launch a nuclear attack on Earth, and we will not hesitate to use our full military force to prevent this from happening."

Trump said that the US had been "left with no choice" but to declare war on Mars, and that the military was "ready and able" to respond to any threat.