Battle of Sekigahara (1600): How Ieyasu Won Japan in a Day

The Battle of Sekigahara (21 October 1600): how fog, secret deals and a few silent hills handed Tokugawa Ieyasu Japan for over 250 years. On a foggy autumn morning in the valley of Sekigahara, two armies of tens of thousands met in the largest field battle Japan had yet seen, according to one museum. This animated history documentary follows the whole campaign in order: Hideyoshi's death, the rivalry of Ieyasu and Ishida Mitsunari, the night march in the rain, the fog, the lunch that Kikkawa Hiroie supposedly refused to leave, the young commander on Matsuoyama, Shimazu Yoshihiro's escape, and the shogunate that followed. WHAT YOU WILL LEARN What happened at the Battle of Sekigahara? A night march, a foggy valley, and silent hills that decided the day. When was the Battle of Sekigahara? 21 October 1600 in the Gregorian calendar, which is the 15th day of the 9th month in the old Japanese lunar calendar (why some books say 15 September). Who won the Battle of Sekigahara? The Eastern Army of Tokugawa Ieyasu over the Western Army of Ishida Mitsunari. Why did the Battle of Sekigahara matter? It led to Ieyasu's appointment as shogun in 1603 and a Tokugawa shogunate that lasted until 1868. Did Kobayakawa Hideaki betray the Western Army when the guns fired? Historians disagree, and the video gives both views. CHAPTERS 0:00 Battle of Sekigahara: the foggy dawn of 21 October 1600 0:59 Hideyoshi's death and the five elders (1598) 1:27 Ieyasu vs Ishida Mitsunari: the rivalry 2:06 Summer 1600: the Western coalition and Fushimi Castle 2:55 The night march in the rain (20 October 1600) 3:35 The fog and the first charge at Sekigahara 4:40 The silent hills: Kikkawa and Shimazu hold back 5:38 Kobayakawa Hideaki's betrayal: legend or timing? 6:45 The collapse and Shimazu's escape 7:44 Aftermath: executions and a redrawn Japan 8:50 1603: Ieyasu becomes shogun, Osaka 1615 9:28 Who really won the Battle of Sekigahara? SOURCES AND FURTHER READING US National Park Service, "Battle of Sekigahara": nps.gov/articles/000/battle-of-sekigahara.htm Samurai Museum Berlin, "Battle of Sekigahara (1600)": samuraimuseum.de World History Encyclopedia, "Tokugawa Ieyasu": worldhistory.org/Tokugawa_Ieyasu Sekigahara Battlefield Memorial Museum (Gifu Prefecture): sekigahara.pref.gifu.lg.jp Wikipedia articles on the Battle of Sekigahara, the Sekigahara Campaign, the Siege of Osaka and the main commanders (used as leads and cross-checked) Osprey Publishing blog, "The Battle of Sekigahara: what went right" (on Shiramine Jun's 2014 book) Works cited by those pages for further reading: Anthony J. Bryant, Sekigahara 1600 (Osprey, 1995); Stephen Turnbull on the musket story; Shiramine Jun, the Japanese study of the battle (2014) A NOTE ON DISPUTED NUMBERS Sources disagree on army sizes (about 80,000 per side is a common figure, with totals up to about 160,000), the start time (about 8 a.m. or closer to 10 a.m.), the length of the fighting (about two hours to about six), the dead (from about 8,000 to over 35,000), Kobayakawa Hideaki's age (18 to 23), and the share of Japan the Tokugawa held directly (about 23 to 30 percent). The narration gives ranges and names who says what. The story that Ieyasu fired muskets at Kobayakawa's hill is an Edo-period tradition that some historians doubt. CREDITS Script researched and written for this channel. Illustrations generated with AI (Agnes AI). Narration is an AI voice (Deepgram). Music and sound effects are synthesized. Some names are spelled phonetically in the on-screen captions so the AI voice says them correctly. If you enjoyed this, subscribe for more animated history, and tell me in the comments which battle I should cover next. #Sekigahara #SamuraiHistory #TokugawaIeyasu