Israeli Prime Minister Benjamin Netanyahu, accompanied by his wife Sarah, kneels before his brother Yoni's grave on Mt. Herzl cemetery in Jerusalem, Wednesday, April 29, 1998. Yoni Netanyahu was killed during an Israeli commando operation in Uganda to rescue passengers of a hijacked Air France plane in 1976.
Sirens wailed throughout Israel on Tuesday, ushering in a day of mourning for the 18,748 soldiers who died fighting for the Jewish state over the past 50 years.