American service personnel in their teens or early twenties during the Second World War would be in prime car-buying age by 1960, if only to find an economical small second car for their growing family needs. Yutaka Katayama (Mr. "K"), former president of Nissan's American operations, would have had his personal wartime experiences in mind supporting the name Datsun. Katayama's visit to Nissan's Manchuria truck factory in 1939 made him realise the appalling conditions of the assembly lines, leading him to abandon the firm. In 1945, near the end of the war, Katayama was ordered to return to the Manchurian plant, however he rebuffed these calls and refused to return.