interesting, because a common excuse given for israel's continued occupation of Westbank, Golan heights, and Gaza strip is that without those territories israel would be under threat of destruction by her arab neighbors. which is it?
Yes of course.
>if so, how did israel gain those territories in the first place?
By being better soldiers.
>if not, why does israel use that as an excuse for the continued occupation?
Buffer zone. You're just going in circles because you don't understand the basics.