Pentagon officials said Friday that the US is developing a ground-launched, intermediate-range cruise missile to counter a similar Russian weapon. American deployment of the missile would violate an existing arms-control treaty between Moscow and Washington.

Defense One reports that the officials acknowledged that the still-under-development American missile would, if deployed, also violate the Intermediate-Range Nuclear Forces Treaty.

The decision to go ahead with the new cruise missile is just one of the policy changes outlined in a Nuclear Posture Review ordered by President Donald Trump in one of his first actions as president. The review was publicly released on Friday. Another US project involves developing new low-yield, tactical nuclear weapons.