Recalled to Japan in late 1938, Higuchi served briefly on the Imperial Japanese Army General Staff before being assigned as commanding officer of the IJA 9th Division in 1939. In 1942, he was promoted to lieutenant general and assigned to the Sapporo-based 5th Area Army. He participated in the invasion of the Aleutian islands, including the disastrous campaigns on Attu Island and Kiska Island. Afterwards, as commander of the Northern District Army he organized the defenses of northern Japan against invasion by Allied forces, fortifying Shumshu island in the northern Kurile Islands, and the defense of South Sakhalin Island.