Dmitry Medvedev, deputy chairman of the Security Council of Russia and ally of President Vladimir Putin, spoke of potentially creating a "sanitary zone" either on the border with or inside Poland. On Friday, Ukraine hit fuel depots, oil facilities and a power station in southwestern Russia and Crimea, a Ukrainian peninsula that Moscow has occupied since 2014. The Russian Defense Ministry said via Telegram on Friday that Moscow intercepted more than 100 unmanned aerial vehicles (UAVs) on Thursday night. The day before, Ukraine fired missiles that hit an airfield in Crimea. The drone strikes came after Russian forces advanced into...