Certainly. In many respects the barrier around Esthar is like the Berlin wall, although the Esthar barrier is is to keep the outside world away, while the Berlin wall was to keep the citizens of East Berlin inside.

In a way the barrier emphasizes self-imposed exile of Esthar as a nation. Until Laguna, it was bent on world domination. Afterwards, it became a more withdrawn and inward-looking society. That left a power vacuum which Galbadia began to fill.