先島群島
The United States Navy's Task Force 58, deployed to the east of Okinawa with a picket group of from 6 to 8 destroyers, kept 13 carriers (7 CVs and 6 CVLs) on duty from 23 March to 27 April and a smaller number thereafter. Until 27 April, a minimum of 14 and up to 18 escort carriers (CVEs) were in the area at all times. Until 20 April, British Task Force 57, with 4 large and 6 escort carriers, remained off the Sakishima Islands to protect the southern flank.