Israel on Tuesday confirmed it had killed Hashem Safieddine, the heir apparent to late Hezbollah leader Hassan Nasrallah who was killed last month in an Israeli attack targeting the Iran-backed Lebanese militant group. The military said Safieddine was killed in a strike carried out three weeks ago in Beirut's southern suburbs, its first confirmation of his death. Earlier this month, Israel said he had probably been eliminated. There was no immediate response from Hezbollah to Israel's statement that it had killed Safieddine. "We have reached Nasrallah, his replacement and most of Hezbollah's senior leadership. We will reach anyone who threatens...