Since 2005, 2017

The army launches operation 'Fajr al-Jurud' against the Islamic State on the eastern border.
On President Aoun's orders the army moved against Islamic State and al-Nusra fighters holding the arid hills of Ras Baalbek and al-Qaa, while Hezbollah attacked al-Nusra from the Syrian side, a rare tacit cooperation. The jihadists held out for several days before surrendering, and a truce let the survivors and their families go to eastern Syria.

Saad Hariri announces his resignation from Riyadh.
President Aoun refused the resignation Saad al-Hariri announced live from Riyadh; in the view of some Lebanese officials he was acting under Saudi duress and being held there against his will.

Hariri returns to Beirut and soon withdraws his resignation.
His return followed intense international mediation, especially by France.

President Aoun tells the UN refugee chief that Syrians cannot stay in Lebanon for good.
Aoun told UN refugee chief Filippo Grandi the refugees could not stay permanently and the world must help them home, but Lebanon would force no one back while Syria was unsafe.