 |  | | |
  | Bogadjim |
| |
|
  | 18th Army 20th Div (Japanese) |
|  |
|
 | 18th Army 51st Div (Japanese) |
| |
|
  | 20th Division 4th Field Hospital (Japanese) |
|  |
|
 | 20th Division 78th Infantry Regt (Japanese) |
| |
|
  | 20th Division 79th Infantry Regt (Japanese) |
|  |
|
 | 20th Division 80th Infantry Regt (Japanese) |
| |
|
  | 20th Engineer Regt 2nd Coy (Japanese) |
|  |
|
 | 33rd Independent Engineer Regt 2nd Coy (Japanese) |
| |
|  |
  | Boiken |
| |
|  |
  | Boo Islands |
| |
|  |
  | Borgen Bay |
| |
|  |
  | Bougainville |
| |
|  |
  | Buka Island |
| |
|  |
  | Buna |
| |
|  |
  | Buso River–Finschhafen Area |
| |
|  |
  | Butubutu |
| |
|  |
  | Cape Campbell |
| |
|  |
  | Cape Nelson |
| |
|  |