Communications were maintained by the two wireless telegraph pack sections with Northern Column but communication with Southern Column was only by aircraft messages or visual signalling which was difficult in the country the two columns moved through
खरेपाहता कॉरल समुद्र हा डग्लस मॅकआर्थरच्या आधिपत्यात होता पण निमित्झने फ्लेचर आणि हाल्सीला आदेश दिला की कॉरल समुद्रात असेपर्यंत या दोघांनी थेट निमित्झशीच संपर्क ठेवावा.