Israel's first open offensive on Iran marks a dramatic turn in a long, complex history. Before Iran's 1979 revolution, the two were close allies, trading arms, oil, and intelligence. The Shah saw Israel as a key partner against Arab rivals.

Israel expanded its surprise campaign against its main rival with a strike on the world's biggest gas field.

Israel and Iran kept up their attacks, killing and wounding civilians and raising concern among world leaders meeting in Canada this week that the biggest battle between the two old enemies could lead...

In recent weeks, Israel grew more convinced that the threat posed by Tehran was getting increasingly serious and urgent.

Group of Seven leaders have a draft joint statement calling for deescalation of the Israel-Iran conflict, according to two sources and a draft seen by Reuters.

Israel unleashed airstrikes across Iran for a third day Sunday and threatened even greater force as some Iranian missiles evaded Israeli air defenses to strike buildings in the heart of the country.