Israel and Iran have begun a new round of attacks, as the conflict between the two heavily armed rivals enters its fourth day.

Iran and Israel continued on Sunday their aerial attacks, which began Friday with a series of Israeli strikes on Iran.

Iran launched a wave of missiles just hours after Israel said it was striking missile sites in central Iran. Israel says it hit Quds Force command centers.

Israel-Iranian missile exchanges prompt Trump to call for immediate negotiations "before it's too late," revealing divisions among Republicans and Democrats on Middle East policy

Israel and Iran both have little incentive to stop and no obvious route to outright victory. Much depends on President Trump.

Despite stunning early successes in Israel’s unprecedented strikes on Iran, a weekend of intensive bombardment and retaliation is raising questions about Israel’s exit strategy – how it can end this conflict with its ambitious goals achieved.