Though the Northern Song had far more fields,families and armed forces than the Western Xia,at the beginning of the war,the Northern Song was defeated.

• 虽然北宋的国土、户口、耕地、军队兵员、经济实力,均远远超过西夏,但宋夏战争初期北宋却在几场重要战役中惨遭失败。