Egyptian soldiers stand guard at the Rafah border crossing between Egypt and Gaza after Egypt closed the crossing following the deadly attack on its soldiers on Sunday, August 6, 2012. Islamist gunmen killed at least 15 Egyptian police on Sunday and seized two military vehicles to attack a crossing point into Israel, the deadliest incident in Egypt’s tense Sinai border region in decades. REUTERS/Stringer (EGYPT – Tags: POLITICS CIVIL UNREST MILITARY)