The armed forces will receive new powers to shoot down drones that threaten military bases in the UK, the defence secretary will reveal. John Healey will use a speech on Monday evening to warn of the growing threat posed by unmanned aerial vehicles following an incursion into Polish airspace of 19 Russian drones in September and escalating Russian drone attacks against targets in Ukraine. "Here at home, we continue to defend ourselves daily from threats reaching from the seabed to cyberspace,"