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Tunnel warfare - Wikipedia

Tunnel warfare is a general name for war being conducted in tunnels and other underground cavities. It often includes the construction of underground facilities (mining or undermining) in order to attack or defend, and the use of existing natural caves and artificial underground facilities for military purposes.

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Click here for a key to the symbols used. "LRN" refers to the Pre-1964 Legislative Route Number. "US" refers to a US Shield signed route. …

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A page for describing UsefulNotes: American Civil War. Almost every student of American History considers this to be the seminal event in the history of The …

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A list of every Word of the Year selection released by Dictionary.com. Dictionary.com's first Word of the Year was chosen in 2010.

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The Phantom Menace: Fantasies, Falsehoods, and Fear-Mongering about Iran's Nuclear Program

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Latest environmental news, features and updates. Pictures, video and more.

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