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Flipping through the pages of war history, it is not difficult to find that most of the battles associated with terms like "mountains of corpses and seas of blood," "casualties in droves," and "meat grinders" involve siege warfare centered around defensive works. Aside from various fortresses and siege battles, with the advance of technology, trench warfare and urban close-quarters combat have also joined the fray. Trenches smeared with blood and chunks of flesh; both sides of the conflict piling up bodies in a contest for a building or a station, staining the ground red—these have become the visceral impressions of brutal war for an entire generation. It wasn't until a superpower floundered for 16 years in the jungles of Southeast Asia, and then in the new millennium plunged headfirst into the imperial graveyard and the feculent dunes of the Middle East, that the unending security war gradually became the new generation's representative interpretation of "bloody cruelty."
