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Israeli army officer gives explanations during an army organised tour in a tunnel said to be used by Palestinian militants for cross-border attacks

An Israeli army officer gives explanations to journalists during an army organised tour in a tunnel said to be used by Palestinian militants for cross-border attacks, July 25, 2014. U.S. Secretary of State John Kerry pressed regional leaders to nail down a Gaza ceasefire on Friday as the civilian death toll soared, and further violence flared between Israelis and Palestinians in the occupied West Bank and Jerusalem. REUTERS/Jack Guez/Pool (CIVIL UNREST MILITARY POLITICS CONFLICT)