Israel is preparing to strike Hamas forces in Lebanon, with action also likely against Hezbollah targets in Beirut. The strikes will serve as retaliation for Hamas's firing of dozens of rockets into northern Israel on Thursday. Those attacks injured three Israelis. Hamas has also launched rockets from the Gaza Strip into southern Israel in recent days. Hamas and Hezbollah, which supports the attacks, are using the nominal excuse of clashes between Israeli police and protesters at the al Aqsa Mosque in Jerusalem. Still, the primary motive for the rocket fire is likely pressure from Iran on the terrorist groups to...