in the lagoon, and to the Saida Maru (斉田丸), a wrecked Japanese steamship lying west of the main pier. They waited for dawn, when they intended to fire on U.S. forces from behind. Lacking central direction, the Japanese were unable to coordinate for a counterattack against the toehold the Marines held on the island. The feared counterattack never came, and the marines held their ground. By the end of the first day, of the 5,000 Marines put ashore, 1,500 were casualties, either dead or wounded. 21 November With the Marines holding a thin line on the island, they were commanded to attack Red Beach 2 and 3 and push inward and divide the Japanese defenders into two sections, expanding the bulge near the airfield until it reached the southern shore. Those forces on Red 1 were directed to secure Green Beach for the landing of reinforcements. Green Beach made up the entire western end of the island. The effort to take Green Beach initially met with heavy resistance. Naval gunfire was called in to reduce the pill boxes and gun emplacements barring the way. Inching their way forward, artillery spotters were able to direct naval gunfire directly upon the machine gun posts and remaining strong points. With the major obstacles reduced, the marines were able to take the positions in about an hour of combat with relatively few losses. Operations along Red 2 and Red 3 were considerably more difficult. During the night the defenders had set up several new machine gun posts between the closest approach of the forces from the two beaches, and fire from those machine gun nests cut off the American forces from each other for some time. By noon the U.S. forces had brought up their own heavy machine guns, and the Japanese posts were put out of action. By the early afternoon they had crossed the airstrip and had occupied abandoned defensive works on the south side. Around 12:30 a message arrived that some of the defenders were making their way across the sandbars from the extreme eastern end of the islet to Bairiki, the next islet over. Portions of the 6th Marine Regiment were then ordered to land on Bairiki to seal off the retreat path. They formed up, including tanks and pack artillery, and were able to start their landings at 16:55. They received machine gun fire, so aircraft were sent in