The Biden administration gave Ukraine permission to use the long-range guided missile system inside Russian territory, reversing previous restrictions.

For the first time, President Joe Biden has authorized Ukraine to launch American-supplied missiles deep inside Russian territory, according to multiple news reports. The missiles are known as Army Tactical Missile Systems, or ATACMS for short.

Washington's U-turn is unlikely to change the balance of power on the ground. But it does raise the question of whether Ukraine will be allowed to use French Scalp and British Storm Shadow missiles.