A Palestinian worker checks a truck loaded with bags of cement as it crosses into southern Gaza from Israel last year. Israel has restricted cement supplies to only specific projects. Said Khatib/AFP/Getty Images hide caption

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Palestinian onlookers and civil defense members gather at a site where an Israeli military operation left two Palestinians dead in the West Bank town of Hebron on Tuesday. Troops killed two Palestinian suspects in the June murder of three Israeli teenagers in the West Bank. Hazem Bader/AFP/Getty Images hide caption

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Robi Damelin, left, is an Israeli whose son was fatally shot by a Palestinian in 2002. Bassam Aramin is a Palestinian whose daughter was shot dead by Israeli police in 2007. They belong to the Parents Circle, a group of mothers and fathers who have lost children and seek an end to the Israeli-Palestinian conflict. Ryan Kellman/NPR hide caption

itoggle caption Ryan Kellman/NPR

Israel declared as state land this week nearly 1,000 acres in the West Bank, beginning the process to build settlements in more areas Palestinians say should be part of a future Palestinian country. Here, a general view of construction of new housing units in the Israeli settlement of Beitar Illit, which borders some of the appropriated land. Debbie Hill/UPI/Landov hide caption

itoggle caption Debbie Hill/UPI/Landov

An Israeli soldier launches a drone that's attached to a military vehicle in southern Israel, not far from the border with the Gaza Strip, on July 29. Israel was a pioneer with drones and has developed a number of military technologies that it later sells abroad. Jim Hollander/EPA/Landov hide caption

itoggle caption Jim Hollander/EPA/Landov

An Israeli couple, Noga and Moshiko Siho, kiss after they have their wedding photos taken Wednesday in an army staging area on the Israel-Gaza border, near Kibbutz Yad Mordechai, Israel. Oded Balilty/AP hide caption

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Palestinian mourners carry the body of three senior commanders of the Hamas military wing in the southern Gaza Strip on Thursday, after they were killed in an Israeli airstrike. Hamas executed more than a dozen people it says were spying for Israel. Khalil Hamra/AP hide caption

itoggle caption Khalil Hamra/AP

U.S. Secretary of State John Kerry shakes hands with Israeli Prime Minister Benjamin Netanyahu in Tel Aviv on July 23. While the two countries are close allies, they have exchanged criticism during the recent Israel-Hamas fighting in Gaza. Pool/AFP/Getty Images hide caption

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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