China has called for an end to attacks on civilian vessels in the Red Sea that have dramatically widened the Hamas-Israel conflict and placed Beijing's commercial interests along the Suez Canal at risk.The Iran-backed Houthi militia from Yemen that seeks "Death to Israel" is challenging the ability of the world's biggest trading nation to defend billions in strategic investments in Egypt.Since President Abdel-Fattah el-Sisi came to power in 2014, China has stepped up its investment and commercial activities along Egypt's Suez Canal…