Which is the strongest modern day fortification & what kind of defenses does it employ? What is the maximum amount of firepower that it can withstand (ignoring nukes) and for how long? -
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Alexander the Great presence still felt in modern Afghanistan, visual reminder a few miles away from | Article | The United States Army
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World of Wallcraft: The Contemporary Resurgence of Fortification Strategies - Military Strategy Magazine
![US World War II and Korean War Field Fortifications 1941–53 (Fortress): Rottman, Gordon L., Palmer, Ian: 9781841768120: Amazon.com: Books US World War II and Korean War Field Fortifications 1941–53 (Fortress): Rottman, Gordon L., Palmer, Ian: 9781841768120: Amazon.com: Books](https://images-na.ssl-images-amazon.com/images/I/A1Un9MpkOHL.jpg)