Ukraine has publicly acknowledged its use of American ATACMS missiles in attacks on Russian territory for the first time, marking a major shift in its military strategy.President Joe Biden approved the use of these long-range missiles near the end of his term, delegating approval authority to US General Alexus Grynkewich, who commands NATO forces in Europe.Ukrainian strikes using ATACMS have been reported as successful, forcing Russia to reconsider its defense tactics amidst uncertainty about missile availability and recent Russian claims of missile destruction in Voronezh.