The morning of 4 March saw the arrival of the 2nd Squadron, 7th Cavalry, which relieved the 2nd Squadron, 5th Cavalry. The next day Major General Innis P. Swift, the commander of the 1st Cavalry Division, arrived aboard "Bush" and assumed command. He ordered the 2nd Squadron, 7th Cavalry to attack across the native skidway. The 2nd Squadron, 5th Cavalry therefore went back into the line to relieve them. While the relief was taking place, the Japanese launched a daylight attack. This was repulsed by the cavalrymen, with the help of artillery and mortar fire, but the American attack was delayed until late afternoon. It then ran into a Japanese minefield and by dawn the advance had only reached as far as the skidway.