You're making my point. There were Egyptian fortifications all over their empire. Why do you cherry-pick one of them?
Sorry,
Moses had to initially go into Saudi Arabia because the Sinai Peninsula was under Egyptian military control. So I focused only on the bases in the Sinai Peninsula. There are many others, just as you so correctly pointed out.
According to the account...
Moses was born a Hebrew in Egypt
Moses grows up in an Egyptian house of royalty
Moses killed an Egyptian
Moses flees Egypt to avoid the death penalty
(To flee Egypt, he had to leave the country of Egypt proper and also leave any outlying territory controlled by the Egyptian military, the Sinai Peninsula, as well to avoid being captured and killed.)
The account names the place Moses goes to and lives in for 40 years as Midian, which has always been located in Saudi Arabia. So we know Moses was supposed to have lived in Saudi Arabia according to the account. (Incidentally that Moses lived there in Midian has also been passed down from generation to generation even to the people that live in the area today)
The Pharaoh who wanted to kill Moses dies.
While he is in Midian (Saudi Arabia), according to the account, Moses encounters God in a burning bush, at Horeb, the Mountain of God, and God tells him to go back to Egypt, because God will use him to set his people free from the slavery of Egypt.
But, God tells Moses to bring the Israelites back to the Mountain of God.
For Moses to do that he would have had to bring them all the way to Saudi Arabia, because that is where the Mountain of God is located.
So Moses returned to Egypt, set his people free, and then brings them to the Mountain in Saudi Arabia.
Thanks for your interest and patience with me!
Sorry if I am not being clear!