 But government threats of harsh action against the militants has raised fears that the Lebanese army could begin an all-out assault on the camp at any time, raising further concerns for the humanitarian situation of those civilians still inside.Five military transport planes carrying military aid for the Lebanese army from the United States and its Arab allies arrived at Beirut airport.One plane was from the U.S. Air Force, two from the United Arab Emirates Air Force and two from the Royal Jordanian Air Force.