The toughest fight of the fourth day (D+3) occurred on the Red Beach One/Two border where Colonel Shoup directed the combined forces of Hays' 1/8 and Schoettel's 3/2 against the "re-entrant strongpoints. The Japanese defenders in these positions were clearly the most disciplined—and the deadliest—on the island. From these bunkers, Japanese antiboat gunners had thoroughly disrupted the landings of four different battalions, and they had very nearly killed General Smith the day before. The seaward approaches to these strongpoints were littered with wrecked LVTs and bloated bodies.