Answer:
Those who lived through the war between 1914 and 1918 undoubtedly thought that it was a world conflict and they called it that. From his perspective, the war was of such magnitude that it seemed that the entire planet was collapsing. The term World War expressed the scale of fear that the conflict had generated.
Explanation:
En espanol:
Los que vivieron la guerra entre 1914 y 1918 pensaron sin duda que se trataba de un conflicto mundial y así la llamaron. Desde su perspectiva, la guerra era de tal magnitud que parecía que el planeta entero estaba colapsando. El término Guerra Mundial expresaba la escala de pavor que había generado el conflicto.