Joe Biden gave the green light for the US-made weapon to be used inside Russia. How will it affect the war?

• Russia-Ukraine war – latest news updates

Senior US and Ukrainian officials have confirmed that US-made Atacms missiles have been fired into Russian territory for the first time during the Ukraine war.

The attack in Russia’s south-western Bryansk region came two days after Joe Biden’s administration permitted their use, and on the 1,000th day of the war since Russia launched its full-scale invasion.