Israel has one of the world’s best defenses against missiles and rockets, but struggles to detect slower-moving unmanned aircraft, experts said.

Hezbollah’s deadly attack against an army base deep inside Israeli territory presents a major headache for Israel as it continues to struggle to defuse the threat posed by the group.

Air strike kills at least 18 and flattens buildings in Zgharta district in northern Lebanon, an area where Hezbollah has little to no presence