The Entire History of World War 1 Explained

One assassination in Sarajevo set off a chain reaction that dragged the entire world into four years of industrialized warfare — trenches, new weapons of mass killing, and the collapse of empires that had stood for centuries. This video breaks down the entire history of World War 1: how it started, how alliances turned a regional conflict into a global one, the brutal reality of trench warfare, and how it reshaped the map of the modern world. One war, four years, millions of lives, explained simply. 🎖️ Subscribe for more full-history deep dives explained simply.#WorldWar1 #WWI #GreatWar #MilitaryHistory #WorldHistory #HistoryExplained #Documentary #HistoryFacts #TrenchWarfare