Increased maneuverability has become “a game changer,” sources have told the paper The Russian military has modified its missiles to better evade Ukrainian air defenses, including US-made Patriot systems – often seen as a key linchpin of Kiev’s shield – the Financial Times reported on Thursday, citing officials in Kiev and the West.According to officials interviewed by the FT, Russian missiles can now follow a normal arc before veering into a steep terminal dive or executing maneuvers that “confuse and avoid” Patriot interceptors. The outlet cited recent strikes against Ukrainian drone facilities as a strong indication that Russia has likely upgraded the Iskander-M mobile system and the air-launched Kinzhal.One former Ukrainian official called the added maneuverability “a game changer for Russia,” the newspaper reported, adding that deliveries of US-supplied Patriot interceptors, essentially the only weapon in Ukraine’s arsenal capable of tackling Moscow’s ballistic missiles, are not coming as quickly as planned. The paper also noted that data released by the Ukrainian Air Force shows that the rate of interception of Russian ballistic missiles improved over the summer, reaching 37% in August, but then fell to just 6% in September.Ukraine shares data on Patriot battlefield performance with the Pentagon and weapons producers, according to the FT. Officials told the outlet that while efforts are being made to improve the Patriots’ performance, they often lag behind Moscow’s evolving tactics.Ukraine’s Air Force flagged similar concerns in May. Spokesman Yury Ignat said that the ballistic trajectories of the Iskander-M missiles “have been improved and modernized” while the projectiles could fire off radar decoys. He also complained that Ukraine’s domestically designed air defenses are unable to shoot down most of the Russian missiles, while those produced in the West are used to cover key infrastructure and other high-priority targets.Moscow has repeatedly said its strikes only target military-related infrastructure, defense industry, and troop deployment bases and are never aimed at civilians.