Lebanon's new president and former army commander Joseph Aoun has maintained a low profile. Those who know him say he is no-nonsense, kind and averse to affiliating himself with any party or even expressing a political opinion — a rarity for someone in Lebanon's fractured, transactional political system.

Bilal Saab, a former Pentagon official who is now senior managing director of the TRENDS US consulting firm, often met Aoun while overseeing Washington's security cooperation in the Middle East. He called Aoun a "very sweet man, very compassionate, very warm" who avoided political discussions "like the plague."