 Such losses generated immense public pressure from the Israeli public for a forceful response, and ramped-up targeted killings were one such outcome.While Palestinian operations caused substantial damage, there is also evidence that the IDF reprisal targeted killing policy has been salutary in reducing the "effectiveness" of such attacks.As regarding Hamas, for example, although Hamas attacks "increased" between 2001 and 2005, Israeli deaths dropped as the people targeted for killing were killed, reduced from a high of 75 in 2001, to 21 in 2005.