However, a major rift of opinion existed between the Japanese government and its two field armies, the SEA and 10th Army, which as of November were both nominally under the control of the Central China Area Army led by SEA commander Matsui. Matsui made clear to his superiors even before he left for Shanghai that he wanted to march on Nanking. He was convinced that the conquest of the Chinese capital city of Nanking would provoke the fall of the entire Nationalist Government of China and thus hand Japan a quick and complete victory in its war on China. Yanagawa was likewise eager to conquer Nanking and both men chafed under the operation restriction line that had been imposed on them by the Army General Staff.