Rubuta ci gaba ga wannan sakin layi - Kamar yadda ya faru a lokacin yakin Kokoda Track
da kuma yakin Buna<unk>Gona, kimantawa ta hanyar leken asiri na Australiya ya bambanta da waɗanda ke GHQ, kamar yadda suke amfani da hanyoyi daban-daban. Ma'aikatan leken asiri a Blamey's Allied Land Forces Headquarters (LHQ), wanda Brigadier J. D. Rogers ke jagoranta, sun zo da adadi mafi girma na 3,000. I Corps ya samar da kimanin 1,800, wanda aka wuce tare da ƙididdigar GHQ. Mafi kyawun tushen bayanan sirri na Allies, Ultra, bai haskaka batun ba. An ambaci Finschhafen ne kawai a cikin sakonni biyar da aka bayyana a cikin watanni uku da suka gabata. Yawancin waɗannan suna cikin Dokar Jirgin Ruwa ta Jafananci mara tsaro. Sai bayan kama littattafan lambar Jafananci a cikin Yaƙin Sio a watan Janairun 1944 ne Allies suka sami damar shiga cikin lambobin sojojin Japan. A gaskiya ma, sojojin Japan a yankin a ranar 22 ga Satumba sun kasance kimanin 5,000.