President Trump’s decision to establish a Space Force courts “a military confrontation in outer space,” according to a Russian diplomat.

“The purpose of the instruction was described in very clear terms — dominance in space,” Russian Foreign Ministry spokeswoman Maria Zakharova said, per state-run media and the Russian embassy to the United States. “A military confrontation in outer space could have the same destructive effects as the nuclear race into which the United States plunged the world after WWII.”