11 Artillery shells explode above Gaza City on January 4, 2008, as seen from the Israeli side of the Israel-Gaza border. (PATRICK BAZ/AFP/Getty Images) #
12 A Palestinian medic surveys the damage to a mobile medical clinic destroyed after an Israeli air strike in Gaza January 5, 2009. Four ambulances and three mobile clinics were destroyed in the bombing at Health Care Union, medical workers and witnesses said. (REUTERS/Mohammed Salem) #
13 A picture taken from the Israeli side of the border with the Gaza Strip shows a bomb dropped by an Israeli air force F-16 jet exploding in Beit Hanoun, north of the Gaza Strip, on January 3, 2009. (PATRICK BAZ/AFP/Getty Images) #
14 An Israeli soldier looks out towards Gaza January 4, 2009 outside of Sderot, Israel. (Spencer Platt/Getty Images) #
15 An exchange of fire is seen between the area of the Erez Crossing and Beit Lahiya in the northern Gaza Strip early January 4, 2009. (REUTERS/Amir Cohen (ISRAEL) #
16 Leaflets dropped by Israeli planes are seen falling above the northern Gaza Strip as seen from the Israel side of the border with Gaza, Saturday, Jan. 3, 2009. (AP Photo/Tara Todras-Whitehill) #
17 The feet of one of three Palestinian siblings from the Al-samoni family, killed by an Israeli tank shell, are seen in the mortuary of Al-Shifa hospital, on January 5, 2009 in Gaza City. Seven members from the Al-samoni family were killed including the mother, three children and a baby, when an Israeli shell struck their house south of Gaza city. (Abid Katib/Getty Images) #
18 Army officers and medics wheel an Israeli soldier wounded in the Gaza Strip, after he was brought to Soroka Hospital in the southern Israeli town of Beersheba, Monday, Jan. 5, 2009. (AP Photo/Ariel Schalit) #
19 A relative of a Palestinian victim cries at the morgue in the Al-Shifa hospital on January 5, 2009 in Gaza City, Gaza. (Abid Katib/Getty Images) #
20 An Israeli army mortar team launches a round at a Palestinian target inside the Gaza Strip January 1, 2009 as seen from Israel's border with the Hamas-run territory. (David Silverman/Getty Images) #
21 Palestinian firemen work amongst the rubble of the destroyed house of Hamas senior leader Nizar Rayan after an Israeli missiles strike in the refugee camp of Jabaliyaon January 1, 2009 in Gaza, Gaza Strip. (Abid Katib/Getty Images) #
22 A rocket fired by Palestinian militants from the northern Gaza Strip flies towards an Israeli target Friday, Jan. 2, 2009. (AP Photo/Bernat Armangue) #
23 An Israel soldier walks at a staging area just outside the Gaza Strip, Friday, Jan. 2, 2009. (AP Photo/Sebastian Scheiner) #
24 Debris flies up as a bomb explodes after an Israeli air strike in the northern Gaza Strip January 3, 2009. (REUTERS/Nikola Solic (GAZA) #
25 An Israeli army soldier stands next to artillery shells at a staging area on the Israel side of the border with Gaza Strip, Sunday, Jan. 4, 2009. (AP Photo/Bernat Armangue) #
26 People gather around bodies of Palestinians near a U.N.-run school in Jabalya in the northern Gaza Strip January 6, 2009. Israeli tank fire killed up to 40 Palestinians at the United Nations school in the Gaza Strip on Tuesday, medical sources at two hospitals said. Israeli officials claim they had targeted Hamas soldiers operating in the area. REUTERS/Ismail Zaydah) #
27 Smoke from Israeli artillery shelling billows from the Gaza Strip during sunset on January 3, 2009. (PATRICK BAZ/AFP/Getty Images) #
28 An Israeli mobile artillery unit fires a shell towards Gaza from its position outside the central Gaza Strip January 6, 2009. (REUTERS/Baz Ratner (ISRAEL) #