“Sept 15 – Left Wakde at 9:00 A.M. and headed North. (Morotai invaded).”
Alright so he is leaving Wakde to go to the Halmahera Islands, which was mentioned in a previous entry. He wrote “(Morotai invaded).”. This is true, historically the Island of Morotai was invade this day, September 15th, 1944, by allied forces to take it from the Japanese.
It became known as the Battle of Morotai. I will talk much more about this in the following entry, because he actually arrives there September 16th (the following day). For now I am going to leave it at this.