The number of Russian drone attacks on Ukraine has increased sharply in the last month, the British Defence Ministry said on Friday. According to its figures, around 2,000 unmanned combat drones were used against Ukrainian targets in October, up from 700 in September, the ministry said in its intelligence assessment. It said the number continues to increase and that “it is likely that the high figures seen through September and October to date will become normal.” The ministry attributed the increase to high Russian investments in various types of drone and an expansion of launch sites, which …