On Thursday, President Volodymyr Zelensky said that a Ukrainian-made weapon had hit a target at a distance of 700km. Pskov is nearly 700km (434 miles) from the Ukrainian border. The drone attack on an airbase in the Russian city of Pskov on Tuesday was launched from inside Russia, Ukraine’s military intelligence chief has said. The damaged aircraft are long-range cargo planes, ideal for transporting troops and equipment over long distances and therefore valuable war assets for Russia. Ukraine’s drone attacks on Russia occur almost daily. It had already admitted the Pskov attack. Is Russia becoming vulnerable to drone attacks ?