Which of these tactics is a key aspect of total war?

Question

The inclusion of trench warfare and advanced weaponry
The preservation of infrastructure in areas surrounding the battlefield
The mobilization of both military and civilian populations to support the war effort
The lineation of troops to make battlefield command simpler

Answer 1

The key aspect of total war is the mobilization of both military and civilian populations to support the war effort. Total war involves not only engaging enemy forces but also utilizing all available resources, including civilian infrastructure and populations, to ensure victory. This contrasts with more limited forms of warfare where military efforts are more restricted.