U.S. drone attacks in Yemen have n't received as much attention as in Pakistan . Dozens of airstrikes have killed hundreds , mostly AQAP terrorists , the authors say . Comment: A Yemen expert says the strikes have n't dented AQAP 's overall strength .
U.S. drone attacks in Yemen have n't received as much attention as in Pakistan . Dozens of airstrikes have killed hundreds , mostly AQAP terrorists , the authors say . In April , White House approved policy for even more aggressive campaign of drone strikes . A Yemen expert says the strikes have n't dented AQAP 's overall strength .