New waves of troops kept moving in. Before an hour had passed III Amphibious Corps had landed the assault elements of the 6th and 1st Marine Divisions abreast north of the Bishi River, and XXIV Corps had put ashore those of the 7th and 96th Infantry Divisions abreast south of that river. The 6th Marine Division and the 96th Division were on the flanks. Two battalion landing teams from each of two assault regimental combat teams in the four divisions, or more than 16,000 troops, came ashore in the first hour.{125} (See Map No. 8.)
The assault troops were followed by a wave of tanks. Some were equipped with flotation devices, others were carried by LCM(6)'s which had themselves been transported by LSD's, and still others were landed by LSM's. After debarking the assault waves, the amphibian tractors returned to the transfer line to ferry support troops, equipment, and supplies across the reef onto the beach. LVT, DUKW, and small-boat control points were established at the transfer line. Amphibian vehicles preloaded with ammunition and supplies proceeded inland as needed.{126}
The entire landing on Okinawa had taken place with almost incredible ease. There had been little molestation from enemy artillery, and on the beaches no enemy and few land mines had been encountered. The operation had taken place generally according to plan; there was little disorganization and all but a few of the units landed at the beaches assigned to them. The absence of any but the most trivial opposition, so contrary to expectation, struck the men as ominous and led them to reconnoiter suspiciously. After making certain that they were not walking into a trap, the troops began moving inland, according to plan, a very short time after they had landed.
THE LANDINGS were made in amphibian craft which were shepherded to shore by control craft (arrows). heavy support fire which had blanketed the beaches with smoke and dust lifted seconds before the first troops touched down. Absence of enemy opposition to the landings made the assault seem like a large-scale maneuver as troops (below) left their craft and quickly consolidated. Other waves followed closely.