The 1548 battle of Shiojiritoge was one of many battles fought by Takeda Shingen in his bid to conquer Japan's Shinano Province. It took place soon after Shingen suffered a devastating loss in the battle of Uedahara; he sought revenge, and to return to a string of victories. Shingen launched a surprise attack upon Ogasawara Nagatoki's camp, using only a small rapid strike mounted force. Approaching in the night and attacking at dawn, Shingen caught his enemy unprepared, taking the camp as Ogasawara's men grabbed their armor and swords.