Black smoke billows in the distance following an Israeli airstrike from the northern Gaza Strip on Wednesday. Atef Safadi/EPA/Landov hide caption

itoggle caption Atef Safadi/EPA/Landov

Smoke is seen after what witnesses said was an Israeli airstrike in Gaza City on Tuesday. Israel launched attacks in the Gaza Strip and recalled its negotiators from truce talks in Cairo after saying three Palestinian rockets had hit southern Israel, hours before a cease-fire was due to expire. Suhaib Salem/Reuters/Landov hide caption

itoggle caption Suhaib Salem/Reuters/Landov

Palestinians look out of a window frame in the northern Gaza Strip city of Beit Hanun on Monday. Media reports say a cease-fire has been extended for 24 hours. Thomas Coex/AFP/Getty Images hide caption

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An Israeli Merkava tank drives past a field of sunflowers along the border between Israel and the Gaza Strip as it moves out of the Gaza Strip on Aug. 3. Gil Cohen Magen /AFP/Getty Images hide caption

itoggle caption Gil Cohen Magen /AFP/Getty Images

Palestinians carry belongings from their homes, destroyed by Israeli airstrikes, in Beit Hanoun in the northern Gaza Strip on Sunday. The devastation could resume if a cease-fire is allowed to expire at midnight on Monday. Sameh Rahmi/EPA/Landov hide caption

itoggle caption Sameh Rahmi/EPA/Landov

A Palestinian boy, hoping to cross into Egypt with his family, is held by his mother as they wait at the Rafah crossing between Egypt and the southern Gaza Strip on Tuesday. A cease-fire between Israel and Hamas held for a second day Tuesday as officials from both sides held indirect talks in Egypt. Ramadan el-Agha/APA /Landov hide caption

itoggle caption Ramadan el-Agha/APA /Landov

Palestinian women walk past the rubble of their homes in Gaza City's Shijaiyah neighborhood on Monday. An Egyptian-brokered cease-fire halting the Gaza war held into Monday morning, allowing Palestinians to leave homes and shelters as negotiators agreed to resume talks in Cairo. Hatem Moussa/AP hide caption

itoggle caption Hatem Moussa/AP

An Israeli tank drives past a field of sunflowers along the border between Israel and the Gaza Strip as they pull out from the Gaza Strip Sunday. At least 10 people died in a strike outside a U.N. school in Gaza shortly after Israel confirmed it was withdrawing some troops from the war-torn area. Gil Cohen Magen/AFP/Getty Images hide caption

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A Palestinian youth carries a bicycle from the wreckage of a building hit in an Israeli strike in Rafah in the southern Gaza Strip Saturday. New violence killed dozens in Gaza after the collapse of a UN- and U.S.- backed cease-fire, officials said. Said Khatib/AFP/Getty Images hide caption

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Israelis in Tel Aviv take part in a protest against the military operation in the Gaza Strip on July 26. Israel's permissive approach to free speech has long fostered protests like these, but some Israelis now say that dissenters are traitors. Lior Mizrahi/Getty Images hide caption

itoggle caption Lior Mizrahi/Getty Images