Britain allowed Ukrainians to use Storm Shadows a week after President Biden authorized the use of American-made missiles inside Russia, a shift from a more cautious military strategy.

Ukraine has fired UK-supplied Storm Shadow missiles at targets inside Russia for the first time, the BBC understands. The war-torn country was previously restricted to using the long-range missiles within its own borders.

Ukraine fired Storm Shadow long-range missiles provided by the U.K. into Russia, a day after it struck Russia with U.S.-provided long-range missiles.