From July 1941 to February 1942,
Suwa Maru was employed as a
troop transport used primarily to shuttle troops and supplies from
Manchukuo and various ports in Japan and
Taiwan to points along the China coast and to French Indochina. On 18 February 1942, she was one of 56 transports assigned to the Japanese force for the
Japanese invasion of Java. On the successful completion of her mission, she returned to Moji on 11 April. On 18 April, she was released back to NYK but was then requisitioned by the
Imperial Japanese Navy on 8 August and attached to
Kure Naval District. She spent the remainder of the year shuttling men and material between Japan and
Truk, the
Marshall Islands,
Kavieng on
New Ireland, and
Rabaul. After repairs during the month of January 1943,
Suwa Maru departed Yokosuka on 28 January with 511 passengers to be offloaded at six different island locations. She arrived safely at
Saipan on 7 February,
Ponape on 18 February,
Jaluit on 23 February and
Emiedj on 24 February,
Wotje on 1 March and
Kwajalein on 3 March. She departed Kwajalein on 25 March with 1091 passengers for
Wake Island. On 28 March 1943
Suwa Maru was sighted by at dawn approximately from Wake. The submarine fired two torpedoes, one of which struck the No.4 and No.5 holds, blowing the stern off the ship, To prevent sinking,
Suwa Maru was beached on a nearby reef at approximately , with 14 passengers killed. The wreck was abandoned, but was attacked again on 5 April by . She was removed from the
navy list on 1 July 1943. ==See also==