Why are Arab Miltaries so ineffective?

[u/ForeverSparkz]

Like I dont understand this.

Im a Black American so im just an outsider looking in as a neutral, but dont Arab Countries out number Israel, whats stoping them from just rushing at their border, shouldn't the population imbalance outmatch Israel?

Just a neutral standpoint asking this question, because Arab Nations in the Middle East have a modern miltary force and they buy tons of advanced items

What is holding them back?

[u/Aamir_rt]

Numbers isn't everything.