One reason for this acceleration in drone strikes in Yemen may have been Obama 's authorization in April 2012 of the `` signature '' strikes that had been approved the previous year for use in Pakistan 's tribal regions . Suspected U.S. drone strikes hit three different cities in Yemen . Peter Bergen says they are part of an aggressive war by U.S. against Yemen . Reports are that up to 950 people have been killed , including more than 80 civilians . Bergen : War is focusing on bomb - maker believed to have designed devices aimed at civilians .
Suspected U.S. drone strikes hit three different cities in Yemen . Peter Bergen says they are part of an aggressive war by U.S. against Yemen . Reports are that up to 950 people have been killed , including more than 80 civilians . Bergen : War is focusing on bomb - maker believed to have designed devices aimed at civilians .