This is my take on Tier 8: Since Argentina was the first colonial nation to declare independence from Spain (May 25, 1810), and Argentina prides itself on its European settler heritage and denies any African or native influence, the maximum extent of Argentine claims should include: the Viceroyalty of New Spain, the Louisiana territory, the disputed Nootka territory, the Spanish East Indies, Spanish Sahara, all of Morocco, and Spain itself.
A potential Tier 9: All of Western Europe (Portugal, France, Monaco, Italy, San Marino, the Vatican, the Netherlands, Belgium, Luxembourg, Germany, Switzerland, Liechtenstein, Austria, Great Britain, and Ireland).