World War I From Both Trenches.

After the industrial revolution, all facets of life were permanently altered. Not the least of these changes was warfare. Battles in the twentieth century were to be won with increasingly larger and more deadly armaments such as tanks, dreadnaughts and machine guns. Consequently, the ordinary combat soldier was faced with much more deadly and efficient dangers in the field despite the fact that humans cannot be made more impervious or brave no matter how much …

…after generation of young men. The Great War forever refuted the misconception that combat is always glorious and fun and the "good guys" always win. If both sides exact the same damage on each other, then there really are no "good guys," only dead guys. Another lesson from The Great War was the development of maneuverability and elastic schemes of defense that made nineteenth century tactics obsolete and ushered in a new era of warfare.