_After 24 days of the most bitter battle in the history of the Marine Corps to that date, on 14 March 1945, the colors were raised once again on Iwo Jima to signify the occupation of the island, although the battle was still raging in the north. The official end of the campaign would not be until 14 days later, on 26 March._] The killing continued in the north. The 5th Marine Division entered The Gorge, an 800-yard pocket of incredibly broken country which the troops would soon call “Death Valley.” Here General Kuribayashi maintained his final command center in a deep cave. Fighting in this ungodly landscape provided a fitting end to the battle--nine endless days of cave-by-cave assaults with flamethrowers and demolitions. Combat engineers used 8,500 tons of explosives to detonate one huge fortification. Progress was slow and costlier than ever. General Rockey’s drained and depleted regiments lost one more man with every two yards gained. To ease the pressure, General Schmidt deployed the 3d Marine Division against Kitano Point in the 5th Division zone. Colonel Hartnoll J. Withers directed the final assault of his 21st Marines against the extreme northern tip of the island. General Erskine, pneumonia be damned, came forward to look over his shoulder. The 21st Marines could see the end, and their momentum proved irresistible. In half a day of sharp fighting they cleared the point of the last defenders. Erskine signalled Schmidt: “Kitano Point is taken.” Both divisions made serious efforts to persuade Kuribayashi to surrender during these final days, broadcasting appeals in Japanese, sending personal messages praising his valor and urging his cooperation. Kuribayashi remained a samurai to the end. He transmitted one final message to Tokyo, saying “we have not eaten or drunk for five days, but our fighting spirit is still running high. We are going to fight bravely to the last.” Imperial Headquarters tried to convey the good news to him that the Emperor had approved his promotion to full general. There was no response from Iwo Jima. Kuribayashi’s promotion would be posthumous. Fragmentary Japanese accounts indicate he took his own life during the night of 25-26 March. In The Gorge, the 5th Marine Division kept clawing forward. The division reported that the average battalion, which had landed with 36 officers and 885 men on D-day, now mustered 16 officers and 300 men, including the hundreds of replacements funneled in during the fighting. The remnants of the 1st Battalion, 26th Marines, and the 1st Battalion, 28th Marines, squeezed the Japanese into a final pocket, then overwhelmed them. It was the evening of 25 March, D+34, and the amphibious assault on the rocky fortress of Iwo Jima finally appeared over. The island grew strangely quiet. There were far fewer illumination shells. In the flickering false light, some saw shadowy figures, moving south, towards the airfield.