Subscribe to France 24 now: http://f24.my/youtubeEN Airstrikes in Iraq have killed three leaders of the Islamic State (IS) group in recent weeks, the US said Thursday, while Iraqi Kurds said they had broken a siege on a mountain where Yazidi civilians and fighters have long been trapped by IS forces. Officials said the twin successes dealt heavy blows to IS's command and control as well as their supply lines, and were the latest in a string of apparent setbacks for the group in recent weeks. Visit our website: http://www.france24.com Like us on Facebook: https://www.facebook.com/FRANCE24.English Follow us on Twitter: https://twitter.com/France24_en