Russian forces have also sought to exploit Ukraine's degraded air defense capabilities in an effort to collapse the Ukrainian energy grid and cause long-term damage to Ukraine's infrastructure and defense industrial capacity, according to ISW experts. "The now expected arrival of U.S. security assistance has likely emphasized these considerations for Russian forces," the ISW said. "The Russian military command will likely intensify offensive operations and missile and drone strikes to pursue operationally significant effects that will certainly become harder to achieve against well-provisioned Ukrainian forces." Russian forces have only achieved tactical gains during the past six months of worsening Ukrainian constraints and remain unlikely to achieve a breakthrough that would collapse the front line, reads the report. Russian forces may still be able to make operationally significant advances in the coming weeks.