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The First Great Offensive (第一次大攻勢,,Dai-ichiji Dai Kousei?), previously referred to as the Large-Scale Offensive (大規模攻勢,,Daikibo Kousei?), was an operation which took place in Run Through the Battlefront (Start), carried out by the Legion against all forces of humanity. The operation concluded with the Legion offense being repelled in most regions, with some nations sustaining heavy damage or falling altogether.
