The Austonian (Austin), Trammell Crow Center (Dallas), continental Center I (Huston)
This is true, not having a navy has shown itself to be a weakness of many nations/civilizations in the past. And there are also good reasons why this is so. Not having a navy strongly impacts a civilizations ability to maneuver around certain points and go around them. It also limits the ability to trade with other natons. Not to mention the additional value of having the firepower of ships (those that had cannons later on at least).
A & C; The crusades as a military operation failed. The Holy Roman Empire united only modern day Germany, Italy, and other countries.
