What Was World War I?

Which of these facts are true? More than sixty-five million men from thirty different countries fought in the warIn four years of battle, more than twenty million people diedDogs were used as messengers to carry battle orders to the front lines This compelling addition to the What Was? series covers what was supposed to be “the war to end all wars” but tragically wasn’t.In 1914, the assassination of an Austrian archduke set off a disastrous four-year-long conflict involving dozens of countries with battles taking place in all parts of the world. World War I was the first to use planes and tanks as well as deadly gases that left soldiers blinded or “shell shocked” (a condition now called Post Traumatic Stress Syndrome). There were battles that lasted for months with opposing troops fighting from rat-infested trenches, battles that often ended in a hollow victory with only a small area of land retaken. The author of many successful Who HQ titles Nico Medina gives young readers a