Ichi-no-Tani
You and your army make your way to the impenetrable Ichi-no-Tani, which is flanked by mountains to the north and seas to the south, with cliffs rising high above. You send 7,000 of your men with Toi no Jiro Sanehira to approach Ichi-no-Tani from the west. You bring 3,000 men behind the stronghold for a surprise attack. However, in order to do this, you and your troops need to scale steep cliffs. What do you do?