 Not long after, a US strike killed another nine people, an act that prompted Sharif to summon the US chargé d'affaires in protest and to demand, again, an "immediate halt" to the Anglo-American drone program.In July 2013, it was reported that the US had drastically scaled back drone attacks in order to appease the Pakistani military, which was under growing pressure to move to end American "airspace violations".The CIA was instructed to be more "cautious" and limit the drone strikes to high-value targets, to cut down on so-called signature strikes (attacks that target a group of militants based purely on their behavior).