The Contiguous Zone is a special region of the Earth. All nations with coastlines have claim to international areas that grant them certain rights and privileges. Contiguous Zone rights enable nations to marshal police forces within this international zone. Although Saudi Arabia does not have direct oceanfront property, she does have a west coast and east coast that being the Persian Gulf and Red Sea.
Since Saudi Arabia has a distinguished and recognizable pattern for their official flag, a simple substitution of Contiguous colours is possible that leaves little doubt whose area of the Earth this slice of heaven belongs to.