By Phil Stewart, Idrees Ali and Mohammed Ghobari WASHINGTON/ADEN, Yemen (Reuters) -U.S. and British warplanes, ships and submarines launched dozens of air strikes across Yemen against Houthi forces in retaliation for months of attacks on Red Sea shipping that the Iran-backed fighters cast as a response to the war in Gaza. Witnesses confirmed explosions at military bases near airports in the capital Sanaa and Yemen’s third city Taiz, a naval base at Yemen’s main Red Sea port Hodeidah and military sites in the coastal Hajjah governorate. “These targeted strikes are a clear message that the Unite…