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

Israel's military launched strikes Tuesday on eastern Lebanon, official Lebanese media reported, as Hezbollah fought Israeli soldiers after Prime Minister Benjamin Netanyahu vowed no mercy for the militant group.

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.