Carrier battle group at the Battle of Midway. In contrast, the United States Navy deployed its large carriers in separate formations, with each carrier assigned its own cruiser and destroyer escorts. These single-carrier formations would often be paired or grouped together for certain assignments, most notably the Battle of the Coral Sea and Midway. By 1943, however, large numbers of fleet and light carriers became available, which required larger formations of three or four carriers. These groups eventually formed the Fast Carrier Task Force, which became the primary battle unit of the U.S. Fifth and Third Fleets. With the construction of the large
Battle of the Eastern Solomons bombardment while covering the landing of the Japanese army troops to retake Guadalcanal and Tulagi. In response to an unanticipated land battle fought between U.S. Marines on Guadalcanal and Japanese forces on 19–20 August, the U.S. carrier task forces under Fletcher reversed towards Guadalcanal from their positions to the south on 21 August. The U.S. carriers were to support the Marines, protect Henderson Field, engage the enemy and destroy any Japanese naval forces that arrived to support Japanese troops in the land battle on Guadalcanal. Both Allied and Japanese naval forces continued to converge on 22 August and both sides