Hezbollah chief Hassan Nasrallah said on Sunday his group will not stop fighting Israel and that "American aggression in the Red Sea" will turn it into "a battlefield." James M. Dorsey, a senior fellow at the National University of Singapore's Middle East Institute, says that none of the parties, the U.S., the Hezbollah, nor the Houthis, want to expand the Gaza war into a regional war. He adds that the situation now is more likely a calibration.