Infantry A branch of the armed forces; infantry is the term for foot soldiers. The infantry served as the main branch of the armed forces in the World War. Despite the increased firepower of the infantry, the concept of war held by the European armies originated in the dogma of the superiority of the offensive over the defensive. Tight formations of battle-hardened riflemen swarming over open terrain was the basis for the attack methods of the German infantry Once the infantry had attained fire s…