The German naval frigate Hessen, deployed to the Red Sea as part of an EU naval mission to protect shipping, has repelled an attack by the Iran-backed Houthi militia in Yemen for the first time, according to dpa sources. The vessel shot down two drones in quick succession on Tuesday evening, sources said. This was the German navy’s first live weapons engagement of the deployment, which began on Friday and is considered one of the German armed forces’ most dangerous missions in decades. The mission is about protecting international law, freedom and security on the seas, but also about stabilizi…