Is shipping food there the correct solution? For war, an ostensibly temporary condition, by all means ship the population food. But if an area is already overcrowded beyond what the land can sustain (due to climate, soil quality, or population density) then is it productive to further bolster the population? Seems a human catastrophe in the making, supporting population growth in an area where the land can not supply enough food.
This is literally how cities exist. Or in your world view is food not shipped into cities?