US policy and the pacification of the Saigon government was causing disturbance on the land, making significant losses of cultivated area in the south. The cultivated land decreased, primarily due to the people's government forced into ghettos, burned houses, cutting gardens, fruit trees, out of thousands of hectares of farmland each axis to establish "zones planned Privacy ", and then again by devastated by bombs, chemical warfare and land confiscation for the construction of military buildings.
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