At 0400 the Japanese attacked Major Jones' 1st Battalion 6th Marines in force. Roughly 300 Japanese troops launched a banzai charge into the lines of A and B Companies. Receiving support from 1/10's 75mm pack howitzers and the destroyers and , the Marines were able to beat back the attack but only after calling artillery to within 75 meters of their own lines. When the assault ended about an hour later there were 200 dead Japanese soldiers in the Marine front lines and another 125 beyond their lines. At 07:00 navy fighters and dive bombers started softening up the Japanese positions on the eastern tip of the island. After 30 minutes of air attack the pack howitzers of 1/10 opened up on the Japanese positions. Fifteen minutes later the navy kicked off the last part of the bombardment with a further 15 minutes of shelling. At 08:00 3/6 under the command of Lt. Col. McLeod attacked, Jones' 1/6 having been pulled off the line after suffering 45 killed and 128 wounded in the previous night's fighting. Due to the narrowing nature of the island, I and L Companies of 3/6 formed the entire Marine front with K Company in reserve. The Marines advanced quickly against the few Japanese left alive on the eastern tip of Betio. They had two Sherman tanks named Colorado and China Gal, 5 light tanks in support and engineers in direct support.