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Who is Joseph Aoun, a low-profile army chief who is now Lebanon's president?

Newly-elected Lebanese President Joseph Aoun smiles upon his arrival at the Lebanese Parliament to be sworn in as a new president, in Beirut, Lebanon, Thursday, Jan. 9, 2025. (AP Photo/Hussein Malla)

In this photo released by the Lebanese Parliament media office, newly-elected Lebanese President Joseph Aoun is sworn in as a new president, at the Lebanese parliament, in Beirut, Lebanon, Thursday, Jan. 9, 2025. (Lebanese Parliament media office via AP)

Newly-elected Lebanese President Joseph Aoun reviews the honor guard upon his arrival at the Lebanese Parliament to be sworn in as a new president, in Beirut, Lebanon, Thursday, Jan. 9, 2025. (AP Photo/Hussein Malla)

Newly-elected Lebanese President Joseph Aoun sits at the presidential palace in Baabda, east of Beirut, Lebanon, Thursday, Jan. 9, 2025. (AP Photo/Bilal Hussein)

Lebanese President Joseph Aoun, right, meets with Italian Foreign Minister Antonio Tajani at the presidential palace in Baabda, east of Beirut, Lebanon, Friday, Jan. 10, 2025. (AP Photo/Hussein Malla)