Lebanon

Israeli troops come out of the Gaza Strip on Friday following combat operations in the territory. Israel's military is the strongest in the Middle East, but has waged a series of protracted fights in recent years without winning clear-cut victories. Jack Guez/AFP/Getty Images hide caption

Back row from left, Judge Walid Akoum, Judge Janet Nosworthy, Presiding Judge David Re, Judge Micheline Braidy and Judge Nicola Lettier await the start of a trial at the courtroom of the Special Tribunal for Lebanon in Leidschendam, Netherlands, on Thursday. Toussaint Kluiters/AP hide caption

Lebanese security forces and firefighters inspect the scene of a car bomb explosion that rocked central Beirut on Friday. AFP/Getty Images hide caption

Hassan al-Laqis, described as one of Hezbollah's founding members, was killed in an attack outside his home in Beirut. He's seen here in a photo released Wednesday by the Hezbollah Media Relation Office. AP hide caption

This car was among many vehicles destroyed by bombs Tuesday in Beirut. Nearby buildings suffered extensive damage. More than 20 people, including an Iran diplomat, were killed by the explosions near Iran's embassy. Nabil Mounzer/EPA/LANDOV hide caption

Syrian refugees stand in line for food at Kawergost refugee camp in Irbil, Iraq, on Aug. 21. The Syrian civil war has already sparked a refugee crisis in the region. Now, many countries are waiting to see the effects of a possible U.S. military strike. Hadi Mizban/AP hide caption

Um Ahmed, her husband, Abu Ahmed, and their two children sit inside a United Nations refugee registration center in Tripoli, Lebanon. They fled the northern Syrian city of Aleppo a month ago. "There was a lot of shelling," said Um Ahmed. "I wasn't thinking. I was just thinking of my children." Nicole Beemsterboer/NPR hide caption

Lebanese firefighters extinguish burning cars in Beirut following a huge bomb explosion. Hussein Malla/AP hide caption