(JNS) To protect its civilians from Hezbollah attacks, Israel is building a wall along its border with Lebanon.

A senior Israeli military official emphasized the need for the barrier, saying that although Israeli intelligence monitors the terrorist group, “we are prepared for the possibility that they will surprise us,” according to Associated Press reporters.

The head of Israel’s barrier initiatives, Brig. Gen. Eran Ofir, said approximately several miles of the 80-mile wall have been built. The project is expected to cost $450 million and expected to be completed in two years. Most of the wall is made out of concrete and topped with steel mesh, cameras and sensors. Rugged areas will consist of steel fencing, as opposed to concrete.