When Hassan Nasrallah, the Secretary-General of Hezbollah, delivered televised speeches over the past year during Israel’s war on Gaza, Yemenis would watch him transfixed. Listening closely to every word he said, many believed he would deal painful blows to the Israeli army. On Saturday, however, the veteran leader of Hezbollah was pronounced dead, killed in a huge Israeli airstrike on Beirut. For his supporters in Yemen, it was a disheartening shock. Hezbollah, a political party and militant group established in 1982, has been a crucial ally of Yemen’s Houthi group. Both have almost identical…