Why did the soldiers eat cornbread in the civil war?

Among eating other things when they could, one standard thing they ate was hardtack, a common kind of cracker or hard biscuit. Often they would soak it in water and fry it to make a kind of hardtack pancake. Early in the war the South had the benefits of country cooking. Later on food became less plentiful because the men and farmers were off fighting and not helping to grow enough food crops.