You do realize that it was Arabs from KSA that ruled Southern Sham and modern-day Israel for 2000 + years and even founded the most well-known Jewish dynasty (King Herod the Great) who was an Arab Nabatean and his mother was an Edomite (another Arab group native to Northern Arabia). Palestinians too are our off-spring (along with other Arabs of the Levant - even though migrations (since ancient times - Natufian times - world's first and oldest Neolithic culture) occurred both ways.
en.wikipedia.org
en.wikipedia.org
The ancient Semitic Israelite Abrahamic Prophets were all from Arabia originally as well.
Mark my words, Israel (an US outpost and a partial Arab country as I already explained yesterday - those are pure demographical facts - they (Israelis) can call themselves Martians for all I care - nothing changes) cannot expand other than in Gaza or West Bank and that is also doubtful because the 8-10 million Palestinians are going nowhere.
As for armies, KSA has a 1 million strong army (one of the best equipped in the world too) when SANG is included.
UAE has one of the largest armies in the world compared to their population as well and with MANDATORY military service for local Emiratis. Qatar, although with a very small local population, is one of the richest countries on earth and they have (on paper) the strongest army in the world compared to their size.
Of course, Israel is only relevant military due to the US/West so mentioning them is like mentioning the US/NATO/West indirectly and makes little sense.
Fact of the matter, for that delusional "Greater Israel" (no such thing in history) to even occur to begin with, 500 million Arabs (by 2050 around 800-900 million) would have to somehow disappear. And don't mention nuclear weapons because Israel
using nuclear weapons in the vicinity is suicide for them (Israel/Palestine = uninhabitable permanently) for Israel to use nukes enough to destroy
that imaginary region in question.