re: ASOIAF "What if?" *spoilers*

Thanks to this thread, I am just realizing something. Illyrio and Varys set up that marriage with the idea that they would make it to the 7 Kingdoms with a Dothraki horde to attempt to overthrow Robert Baratheon. Now personally, I think the knights of Westeros in their metal armor, castles, and modernized weapons would have won this war, but that it would have cost them a lot of supplies and men. But the victor doesn't even really matter. Whichever side won was sure to be severely weakened by the war and would be ill fit to fight off another threat. So a few year's pass and here comes Aegon Blackfyre "Targaryen" to claim the Iron Throne. Boom - Varys and Illyrio's original plan. Though it got torn to pieces when Drogo dies and dragons start flying around.