Evelyn, Princess Blücher (1876-1960), An English Wife in Berlin: A Private Memoir of Events, Politics, and Daily Life in Germany Throughout the War and the Social Revolution of 1918
(New York: E.P. Dutton & Company, 1920), p. 295:
The greater part of them were men fighting blindly to guard an ideal, the "Heimat," some patch of mother earth, a small cottage half hidden in its sheltering fruit trees, ploughed fields rising on the slope of a hill up to the dark forest of pines, maybe, or a wide stretch of flat country where the golden corn-fields sway and wave in the wind as far as the eye can reach.
This everything, that meant "home" to them, they were told was in danger, and this they went out to save.