Like bodies, nations are defined by boundaries—separating one from another. A primary objective of nation-states is to avoid being assaulted or invaded by other nations.

Thus, the emphasis on national security or national defense: methodologies for preventing one’s own nation from being invaded or penetrated by other nations.

“Invasion” is experienced as anal rape.

Hitler insisted that Germany had to “protect its rear” against Great Britain, on the one side, and Russia on the other.