Comment by einszwei
Hezbollah didn't exist in 1970s. It was founded in 1982
Like the famous quote said "We make peace with our enemies, not our friends" (I can't recall the source) - what is lacking here is diplomacy.
To repeat - Israel's invasion of Lebanon in 1980s was the catalyst for Hezbollah's rise. While they curbed PLO they created a more formidable adversary.
First, I forgot an 's there - I meant 1970s. Second, unfortunately for Lebanon, Hezbollah wasn't the only terrorist organization growing in it [0]. "The proximate cause of the Israeli invasion was the Coastal Road massacre that took place near Tel Aviv on 11 March 1978"
[0] https://en.wikipedia.org/wiki/1978_South_Lebanon_conflict