If Bambi may, here are some possible lessons, from out of Beirut, to our world leaders:
Do not let corruption AND incompetence rule your country… for too long.
Do not pit people against each other.
Remain united… in loving/serving your country.
Put your country before any ideology, regardless of the latter.
Put your country before your personal and/or tribal interests.
Put your country before other countries’ interests.
Learn to forgive (others… and yourself. Yes, it is possible even after a bloody civil war with over 18 massacres; https://en.wikipedia.org/wiki/List_of_massacres_in_Lebanon).
Learn to live and LET your citizens live… in dignity and freedom.
Have a clear vision of the future.
To conclude, perhaps most importantly, always love, and… re-love your country (as much as needed throughout history!).