they're already there.Not in a conventional way but by proxy.I managed to find an excerpt of the
book I'm currently reading:
The Devil We Know: Dealing with the New Iranian Superpower by Robert Baer (ex–CIA operative).
"Even so, Baer has discovered that Iran is currently engaged in a soft takeover of the Middle East, that the proxy method of war-making and co-option it perfected with Hezbollah in Lebanon is being exported throughout the region, that Iran now controls a significant portion of Iraq, that it is extending its influence over Jordan and Egypt, that the Arab Emirates and other Gulf States are being pulled into its sphere, and that it will shortly have a firm hold on the world’s oil spigot."
http://search.barnesandnoble.com/The-Devil-We-Know/Robert-Baer/e/9781410411631