This came after Israeli jets launched air raids in the Gaza Strip in retaliation for the heaviest barrage of mortars and rockets fired into Israel by Palestinian militants for two years.

这是对两年前巴勒斯坦武装发动最强一次迫击炮和火箭弹袭击后，以色列出动战斗机对加沙地带进行空袭的报复。

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The mission found the repeated firing of rockets and mortars into southern Israel by Palestinian armed groups from the Hamas-controlled Gaza Strip constituted war crimes that may amount to crimes against humanity.

VOA: standard.2009.09.29

Israeli officials say these measures are intended to pressure Hamas, which is on the U.S. government list of terrorist groups, to stop its members and other factions from firing mortars and rockets into Israel.

CNN: A year under Hamas: Gaza safer, but life is desperate

According to Israeli Defence Force figures, 180 rockets and mortars have been fired into Israel by militants in 2010.

BBC: Israeli air strikes hit two Gaza towns