In modern North America, we don't have much need for fortresses anymore. But you still see examples of it with the rich & the political. Look at places like the White House or other parliament buildings & the fencing & security will make you feel like you're entering a fortified place. And with modern technology, fortresses aren't always an obvious obstruction. A neighbour on our street has several outside cameras mounted on his house to prevent vandalism or intrusion. Quite the fortress there if you ask me.
Our yard is fully fenced but we think it was built to keep things in, not intruders out. Good for small dogs & children I guess.
Do we need these fortresses in this day & age? What does it take to trust that God alone can be our fortress & our shield from invasions & evil?