In a significant escalation in the ongoing conflict, Ukraine has fired US-supplied long-range ATACMS missiles into Russian territory. This marks the first instance of Ukraine using these missiles, following a newly granted approval from President Biden. The Kremlin has reacted sharply, claiming that this latest move by Ukraine signifies a new phase in the war and threatens to escalate tensions further, with Russian officials suggesting a potential nuclear response. The use of ATACMS has raised concerns among analysts about the implications for the future of the conflict, as both sides navigate the increased stakes brought about by Western military support.