Why did Clausewitz describe war as a continuation of politics by other means?

Prussian military theorist Carl von Clausewitz described war as a "continuation of politics by other means" to emphasize that war is not an isolated, mindless act of violence, but a rational instrument of state policy.12

In his classic treatise On War, Clausewitz argued that political aims and requirements dictate the intensity and conduct of a conflict. By defining war as a "true political instrument," he posited that political considerations should pervade all aspects of warfare. This perspective was a response to his observation that war is produced by politics, serving as a means to compel an opponent to fulfill a state's will.321

Clausewitz’s dictum highlights that strategy—the use of military means to achieve political ends—is fundamentally linked to the broader goals of a nation or sovereign. While he initially focused on the "total war" unleashed by the French Revolution, his later work recognized that political requirements often necessitate limited war, ensuring that military action remains subservient to political direction.23