In mid-August, "Kagerō" escorted the cruiser to Truk, and continued on from Truk on a high speed transport run to Guadalcanal. For the remainder of 1942 and into February 1943, she was assigned to patrols from Guadalcanal towards Shortland, and to numerous “Tokyo Express" high speed transport operations in the Solomon Islands. During this period, she fought at the Battle of the Eastern Solomons, Battle of Santa Cruz, Naval Battle of Guadalcanal, and Battle of Tassafaronga