Britannica
Sources used in this answer
Why did armies decentralize command as 19th-century battlefields became larger and more dispersed?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
tactics
Sumerian phalanx, a block of foot soldiers depicted standing shield-to-shield, presenting spears, and advancing in a dense mass, detail from the Stele of the Vultures, limestone bas-relief, c. 2450 bce; in the Louvre Museum, Paris.
As 19th-century battlefields grew larger and more dispersed due to the Industrial Revolution and advancements in small arms and artillery, armies were forced to decentralize command to maintain operational effectiveness.
Several factors necessitated this shift:
- Increased Lethality and Range: Technological improvements, such as rifled barrels and explosive shells, made traditional, tightly packed formations suicidal. To survive, troops naturally dispersed and took cover, causing tactical formations to dissolve and battlefronts to become less cohesive.1
- Loss of Centralized Control: As battles spread over larger areas, it became impossible for a single commander to maintain a clear view of the field or keep units in hand. The ability of officers to oversee their troops and objectives declined significantly, rendering the old style of centralized, "paradelike" command obsolete.1
- Adaptation to Initiative: Armies that succeeded in this new environment, such as the German military, adapted by decentralizing command. This approach empowered individual soldiers and lower-level officers to exercise initiative, allowing them to respond to local tactical situations without waiting for orders from a distant headquarters.1
Ultimately, decentralization was a pragmatic response to the reality that modern, dispersed warfare could no longer be managed through the rigid, top-down control of previous centuries.1