In an effort to defend itself from the IS threat and further attacks, the kingdom launched a massive project to construct a “Great Wall”
Intereseting. There are LOTS of border fences that seem to work pretty well. Simply a matter of resolve.
For example, Saudi’s build fence:
http://architizer.com/blog/great-wall-of-saudi-arabia-ksa-planning-600-mile-anti-isis-wall/
In an effort to defend itself from the IS threat and further attacks, the kingdom launched a massive project to construct a “Great Wall”