2. Stage 1954-1975 From 1954 to 1975 year, the country was divided two parts: the North was completely liberated, the South still live under the grip of the American regime - Wei. In this period, the task of the postal service was very heavy: serve effectively for the building and protect the North, serving for the resistance war against the US in the south and international obligations Laos and Cambodia revolution.
đang được dịch, vui lòng đợi..