Why were familiarity with land and climate important to the war effort?

Familiarity with land and climate was crucial to the war effort because it enabled military leaders to make strategic decisions based on terrain advantages and weather conditions. Knowledge of local geography helped in planning troop movements, supply routes, and defensive positions, while understanding climate patterns informed the timing of offensives and logistics. This local insight could also impact morale and support from the civilian population, further influencing the outcome of military engagements. Ultimately, mastery of these factors could provide a significant tactical edge over opponents.