Hezbollah, Iran’s most powerful regional ally, has signaled privately that it does not intend to attack Israel, but Lebanon’s military has bolstered its presence in the country’s south to prevent rocket fire.

The move has been met with relief by the war-weary in Lebanon but there was still a possibility it could change its position if Iran’s regime started to wobble.

A top U.S. official visiting the Lebanese capital on Thursday discouraged Tehran-backed armed group Hezbollah from intervening in the war between Iran and Israel, saying it would be a "very bad decision".