The Middle East witnessed something radically new two days ago, when the Kingdom of Saudi Arabia responded to a plea by Yemen's president and led a 10-country coalition to intervene in the air and on the ground in the country. "Operation Decisive Storm" prompts many reflections: Saudi and Egypt in alliance: Half a century ago, Riyadh and Cairo were active in a Yemen war, but then they supported opposing sides, respectively the status-quo forces and the revolutionaries. Their now being allies points to continuity in Saudia along with profound changes in Egypt. Arabic-speakers getting their act together: Through Israel's early...