AP® European History · Unit 3 · Topic 3.6
The Military Revolution and the Fiscal-Military State
Between 1500 and 1700, European armies grew roughly tenfold because new fortifications and firing tactics demanded far more soldiers, and paying for those armies forced monarchies to build permanent tax-collecting bureaucracies.
Gunpowder cannons made medieval walls obsolete by the late 1400s, so engineers answered with the trace italienne: low, thick, star-shaped forts whose angled bastions let defenders rake attackers with crossfire from every side. These forts were nearly impossible to storm, so sieges dragged on for months, and besieging armies needed huge numbers of troops just to surround and starve a fortress out. On the battlefield, slow-loading muskets created a similar problem: one line of shooters left long gaps while reloading. Volley fire fixed this by arranging soldiers in ranks that fired in sequence, then stepped back to reload while the next rank fired, turning individually slow weapons into something close to continuous fire. Both innovations rewarded sheer numbers over heroic cavalry charges, which is why battles grew less decisive even as armies grew enormous.
None of this was free. Feeding, arming, and paying soldiers on this new scale cost far more than any medieval king had ever needed, and armies that stayed in the field year-round needed revenue that arrived year-round too. Kings who once scraped together funds through one-off feudal dues or loans now needed permanent tax offices, standardized assessments, and trained officials who could collect money reliably every year.
This fiscal pressure is the hinge of the whole unit. Absolutist states like France answered it by centralizing tax collection under royal control, while constitutionalist states like England answered it by giving a parliament power over taxation and spending. Same problem, opposite machines.
Key terms
- Trace italienne
- A low, star-shaped fortress design with angled bastions that resisted cannon fire and crossfire attackers from multiple sides.
- Volley fire
- A tactic where ranks of musket-armed soldiers fired in sequence so reloading one rank never stopped continuous fire.
- Fiscal-military state
- A government built around the ongoing task of raising taxes to fund a permanent, professional army.
- Standing army
- A permanent, professional military force kept active in peacetime as well as war.
Watch it explained
- How it worksShow me how the star-shaped trace italienne fort defeats the cannon that killed medieval walls.
- How it worksHow does volley fire by ranks turn slow-loading muskets into continuous fire?
- Worked exampleTrace the size of the French army from 1500 to 1700 against royal revenue over the same years.
- Ties togetherHow does the cost of these armies force the growth of tax bureaucracies across Europe?
Check yourself
End of topic.