A delegation, led by IJA Colonel Joichiro Sanada, chief of the IGH's operations section, visited Rabaul on 19 December and consulted Imamura and his staff.
En delegation under ledelse af oberst Joichiro Sanada, som var chef for overkommandoens operationssektion, besøgte Rabaul den 19. december og gennemførte konsultationer med Imamura og hans stab.