US officials say President Biden has given the green light for Ukraine to use long range missiles supplied by Washington to strike deep inside Russia. Washington had previously refused to allow such strikes with US-made ATACMS missiles because it feared they would escalate the war.

As the US finally gives Ukraine permission to use long-range strike munitions it had provided for strikes inside Russian territory, attention have turned to the specific capabilities provided, including the Army Tactical Missile Systems (ATACMS) short-range ballistic missile.

The US authorised Ukraine to use US-supplied ATACMs for limited strikes inside Russia. Capable of targeting military bases up to 300km away, this move boosts Ukraine’s morale. Can they alter the course of war?