1: Europe in 1914 Had Absolutely No Idea They Were About To Enter The Most Hellish War Ever

2: Europe's Pre-WW1 Alliances Were a Doomsday Machine That Pulled the Entire Continent Into War

3: Germany So Completely Annihilated Russia At the WW1 Battle of Tannenberg That A Russian General Committed Suicide

4: Germany's Plans For Total French Defeat in 1914 Failed at the Battle of the Marne

5: The Average WW1 Soldier Was a 110-Pound Villager Who Suffered Disease, Hunger, and PTSD

6: World War 1 Trenches Were A Labyrinth of Rats, Disease, Decaying Flesh, and the Omnipresent Threat of Death

7: The Battle of Gallipoli (1915) How Ataturk and the Ottomans Hurled the Allies (Including Winston Churchill) Into the Sea

8: How 1915 Became World War One's Year of Poison Gas, Genocide, and Millions of Refugees

9: Verdun - The 299-Day Battle That Killed 300K Soldiers And Still Scars The Earth With Unexploded Shells

10: WW1 At Sea: The Battle of Jutland (1916)

11: The Brusilov Offensive: Russia's Mortal Blow to Austria-Hungary

12: The Flying Aces of World War One

13: The Battle of the Somme Caused 1 Million Casualties But Was a Turning Point for WW1

14: Why WW1 Was the Graveyard of Empires (Russian, Ottoman, Austro-Hungarian)

15: The Russian Revolutions of 1917-1923--A Bigger Threat Than the Kaiser?

16: The Slog of War -- the Passchendaele Campaign of 1917

17: The Yanks Are Coming -- America Enters World War One

18: Tank Warfare--How Military Tech Took a Quantum Leap at the Battle of Cambrai (1917)

19: The Empire Strikes Back -- Germany's Final Push to Win WW1 in Spring 1918

20: The 1918 Battle of Meggido Shattered the Ottoman Empire and Created the Modern Middle East