While the Gaza conflict continues, the Houthis have been launching attacks on vessels in the Red Sea for two months, saying they act in solidarity with Palestinians. In response, U.S. and British forces have launched joint strikes targeting Houthi militants in Yemen. Washington has also carried out a series of unilateral air raids, but the Houthis say counter-attacks will continue. Will tensions in the Red Sea veer into a wider conflict in the Middle East? And what's fueling these tensions?