Trench warfare is a type of land warfare using occupied fighting lines largely comprising military trenches, in which troops are well-protected from the enemy's small arms fire and are substantially sheltered from artillery.
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Like canals before them, railroads became in essence man-made rivers. Railroads moved freight and people between urban centers in the East into the interior of the country and ultimately toward the West. Towns in the center of the country became boom-towns, acting as railroad transshipment points for goods.
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Sanskrit is the old traditional language but writing system is devnagiri I guess