Black Eagle I will even tell you why the arabs lost 1948 war and palestine the same problems they had in 1948 they have today.
1. In 1948 the Israelis had more soldiers then the Arabs.
2. Israel united all it's groups under a single coordination, the Arabs had their own ambitions for example, Jordan which fought Israel only wanted the West Bank and Jerusalem so they fought a defensive war the Israelis didn't have to worry about the Jordanians while fighting Egypt.
3. Jordan had the most modern units in the 1948 also commanded by British which is why they managed to hold on to the west bank.
4. it's not a David vs Goliath when the Arabs first came Egypt, Jordan, Syria, Lebanon, Iraq, Saudi Arabia they had at the beginning around 20,000- 25,000 troops Israel had 40,000-45,000 troops.
5. the Arabs never had any coordination, Lebanon fought very little, Syria had it's own ambitions to the North, Egypt had it's own in the Negev etc etc the Arabs had no united command they didn't trust each other.
I have more but I will stop their with 1948, Arabs lost due to :Arabs had fewer troops, no coordination, no unification, own ambitions they did not trust one another.