An Israeli army officer walks on July 25, 2014 during an army-organised tour in a tunnel said to be used by Palestinian militants from the Gaza Strip for cross-border attacks. Israel launched its military offensive aiming at destroying tunnels used by Gaza militants. Israeli troops are massing on the border of Gaza following Saturday's surprise attack inside of Israel, but their orders are still unclear. What is clear, however – according to Israeli troops who've fought inside Gaza before – any invasion is going to be difficult, dangerous and bloody. Officials expect the tunnels and ground throughout the area to be booby-trapped with explosives.

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Persons: who've, Harel Chorev, Moshe Dayan Organizations: Palestinian, Gaza, Tel, Moshe, Moshe Dayan Center for Middle, Studies Locations: Gaza, Israel, Upper Gaza, Palestinian, Tel Aviv, Moshe Dayan Center for Middle East