Quá trình hình thành chủ trương chiến lược Chiến dịch Điện Biên Phủ
Ngày 13/3/1954, sau khi chuẩn bị kỹ lưỡng về mọi mặt, quân ta nổ súng tiến công, chính thức mở màn Chiến dịch lịch sử Điện Biên Phủ.
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buG7jS9K4buP4buNSuG7leG7s8SQc01Nw63hu5lKw6LhurhPTOG7s+G7ueG7meG7j+G6pcOC4bu54bq44buV4bql4bql4bq/4bq9MOG7jS9K4buP