Largest Armies in History (1 AD – 2026) | 2,000 Years of Military Power

Word´'s Largest Armies: Watch this epic 2,000 year bar chart race video that explores the largest armies (military personel) in history, from 1 AD to 2026, revealing how military power and army size shifted between ancient empires like the Roman Empire, to modern superpowers like United States and China. The timeline begins with powerful states like the Han Dynasty and the Roman Empire, whose massive forces dominated the ancient world. Later periods highlight the military strength of dynasties such as the Song Dynasty, alongside other major empires that shaped the balance of power through centuries of warfare. In the modern era, industrialization and global war transformed military size and organization. Today, countries like the United States (USA) maintain highly advanced military forces, while geopolitical tensions involving nations such as Iran continue to influence global military strategy. Data Sources The Correlates of War Project (COW) – National Military Capabilities Dataset Stockholm International Peace Research Institute (SIPRI) – Military Personnel and Defense Data International Institute for Strategic Studies (IISS) – The Military Balance World Bank – World Development Indicators (Military Personnel) Our World in Data – Military Personnel and Armed Forces Size Peter Turchin et al. – Seshat: Global History Databank Clodfelter, Micheal – Warfare and Armed Conflicts: A Statistical Encyclopedia Dupuy, R. Ernest & Dupuy, Trevor – The Encyclopedia of Military History Kennedy, Paul – The Rise and Fall of the Great Powers **Historical records and estimates for ancient and medieval armies from academic literature on the Han Dynasty, Song Dynasty, and Roman Empire. Music: Scott Buckley – Path Through The Mountains. Scott Buckley – Uprising Savfk – The Power Savfk – The Killing Joke Savfk – The Hunt Scott Buckley - Sentinel #LargestArmiesInHistory #MilitarySize #WorldHistory #HistoryData #BarChartRace