Russian ballistic missiles are increasingly reaching targets in Ukraine because the country’s air-defense network has limited time to respond. When a launch is detected, systems may have only minutes — or sometimes seconds — to identify and intercept the incoming weapon.

Ukraine says it does not have enough air-defense batteries or interceptors to shield the country effectively. That shortage leaves gaps in protection and makes it harder for Kyiv to defend against repeated ballistic missile attacks.

The short warning period adds to the challenge. Even where defensive systems are available, crews must detect the threat and act quickly, while limited interceptor supplies restrict how many missiles can be engaged. Together, those pressures are allowing more Russian ballistic missiles to get through Ukrainian defenses.