Lebanon was stunned on Nov. 4 when its prime minister, Saad Hariri, speaking from Saudi Arabia, delivered a halting resignation speech.
Mr. Hariri said he left Beirut because he feared assassination.
He placed the blame for his long-distance resignation on Iran and its main ally in Lebanon, Hezbollah.
In the days since, Saudi Arabia has accused Hezbollah of plotting against the kingdom and ordered Saudi citizens to leave Lebanon.
Threats from top Saudi officials are causing new turmoil in a tiny country with complicated sectarian politics, failed power-sharing arrangements and a…