what is the answer summarize world war 1 In terms of the countries involved, the fighting tactics used, and the war's out come.

As many as 8.5 million soldiers and 13 million civilians died as a result of the war.

Failure to deliver mandated reparations leads to the armed occupation of the Ruhr River valley region by French and Belgian troops.

German militarists perpetuate the myth that the German Army was undefeated in battle, undermining faith in the civilian government of the Weimar Republic.

Imperial dynasties in Austria-Hungary, Germany, the Ottoman Empire, and Russia collapsed.