The Pentagon says it's killed a leader of the Somali militant group Al-shabab in a drone strike. ___________________________________________________ The US has been assessing the operation before confirming that Gara was the target. World news from the BBC. 美国五角大楼称,索马里武装组织青年党头目阿丹`加拉在无人机空袭中被炸死.__________________________________ 美国在确定加拉为目标之前,一直在评估空袭行动.世界新闻尽在bbc.