This is the most intense exchange of fire in decades between the two heavily-armed countries, and raises the risk of a wider regional war that some fear could draw in the U.S.

By most early indications, Israel’s attack on Iran’s nuclear program and its military leadership was a stunning success.

But since Israel launched its massive barrage against Iran this week, the Lebanese militant group has stayed out of the fray.

Under the Islamic Republic that took power in 1979, enmity toward Israel has been a core ideological tenet of Iranian foreign policy and a key driver in its regional policy.

Israel launched blistering attacks on the heart of Iran's nuclear and military structure Friday, deploying warplanes and drones previously smuggled into the country to assault key facilities and kill...

In Israel, the streets were eerily quiet in the morning as residents braced for an Iranian counterattack.