 The presence of American carriers nearby firmed up Japanese plans to land troops on Guadalcanal on 24 August, covered by the fleet carriers Shōkaku and Zuikaku and the light carrier Ryūjō. A force of Japanese troop transports was detected on the morning of 23 August some 300 nautical miles (560 km; 350 mi) north of Guadalcanal. Fletcher was not originally inclined to attack them until another force of two transports was spotted at Faisi later that morning. He changed his mind and ordered Saratoga to launch her airstrike of 31 Dauntlesses and six Avengers in the early afternoon at very long range. They could not locate the Japanese convoy in poor visibility because it had reversed course shortly after spotting the American reconnaissance aircraft. The aircraft lacked the range to return to their carrier and they were ordered to land at Henderson Field and return the following morning.
