The Japanese were aware, via signals intelligence, of the large-scale movement of Allied forces in the South Pacific area but concluded that the Allies were reinforcing Australia and perhaps Port Moresby in New Guinea.
Jepang sudah mengetahui dari intelijen sinyal tentang adanya pergerakan skala besar kekuatan Sekutu di wilayah Pasifik Selatan, tetapi menyimpulkan bahwa Sekutu sedang memperkuat Australia dan mungkin Port Moresby di Guinea Baru.