What are kamikaze drones and why is Russia using them in Ukraine?

Justin Bronk, an airpower specialist at the Royal United Services Institute thinktank, says the drones “are difficult to consistently intercept” but their airspeed is slow relative to cruise missiles, meaning air defences will always have a chance. “Ultimately, they offer a way for Russia to cause more civilian and military casualties in Ukraine, but will not turn the tide of the war,” he said.