KEY POINTS
  • Lebanon's prime minister returned to Beirut Tuesday night for the first time since his shock resignation on November 4
  • Militant group Hezbollah's role in the country takes center stage amid escalating tensions between Saudi Arabia and Iran
  • Turmoil in Lebanon could trigger a new refugee crisis and conflict with Israel
A poster of Lebanese Prime Minister Saad Hariri is seen hanging on a pole in the capital Beirut on November 17, 2017.

Lebanese Prime Minister Saad Hariri returned home late Tuesday night following a confounding few weeks that began with his shock resignation from Riyadh, Saudi Arabia, where many Lebanese officials believe Hariri was "held hostage".

On Saturday, Hariri traveled to Paris, France, where he was hosted by French President Emmanuel Macron and promised to "clarify" his position on return to Beirut.