THAT'S THE MUSIC. YOU KNOW WHAT IT MEANS. TOP OF THE HOUR ON NBC NEWS.NOW WE START WITH THE NEW ULTIMATUM FOR PRESIDENT TRUMP SAYING THE WAR WILL NOT END WITHOUT IRAN'S UNCONDITIONAL SURRENDER. THE PRESIDENT'S EXCLUSIVE COMMENTS TO OUR TEAM, AS WE'RE NOW LEARNING HOW CLOSELY RUSSIA IS WORKING WITH THE REGIME IN IRAN. WE ARE LIVE ACROSS THE REGION, AND THAT INCLUDES LEBANON, THE NEWEST FRONT OF THIS WAR.AS ISRAEL LAUNCHES A GROUND ASSAULT WITH DOZENS OF STRIKES ON BEIRUT. WHAT OUR TEAM IS HEARING FROM LEBANE ...