In building its global network of military bases, the US Department of Defense has followed a low-density development model commonly known as sprawl. Sprawl is the norm across the US and on US bases, from Misawa Japan to Aviano Italy. In this chapter, I show how the US is exporting this familiar development pattern to the frontlines. I also outline a seven-point model for sprawl that the military uses to create its inefficient installations. Unfortunately, the US is largely ignoring the environmental, economic and geo-political costs of sprawl and, as a result, is turning allies into opponents.