Jiang Taigong, a military strategist, advises King Wu on preparing an army for a campaign. He stresses the critical importance of meticulous planning and comprehensive equipment to overcome geographical obstacles and ensure the army's success. Specific examples of necessary equipment and strategies for various situations, including crossing rivers and besieging cities, are provided. The text highlights the need for preparedness in all aspects of military operations, from training soldiers to utilizing specialized tools. This emphasizes that a well-equipped and well-trained army is essential for victory.