US officials told the outlet that changes left the launchers incapable of firing long-range ammunition, including the US Army Tactical Missile System rockets (ATACMS), which have a range of nearly 200 miles.Per the report, the US was concerned that even if it did not give Ukraine any ATACMS itself, it may acquire long-range projectiles from elsewhere."If Washington decides to supply longer-range missiles to Kyiv, then it will be crossing a red line and will become a direct party to the conflict," Russian Foreign Ministry spokeswoman Maria Zakharova said in September, according to Reuters.The high-precision rocket launchers have been a crucial addition to Ukraine's arsenal, enabling it to strike distant Russian positions and then move out of the way fast enough to avoid retaliation.Meanwhile, lawmakers from both sides of the aisle have been pushing the Biden administration to provide Ukraine with a fleet of advanced, MQ-1C "Gray Eagle" drones that would significantly increase the lethality of the country's armed forces."