December 15, 1943. The cavalry arrives.

The 112th Cavalry, which had been dismounted, landed at Arawe in the opening battle of the New Britain Campaign, Operation Cartwheel.

The landings were actually a diversion for an upcoming landing at Cape Gloucester.

The 112th Cavalry was a cavalry regiment of the Texas National Guard. They had at first been retained along the boarder with Mexico until Mexican attitudes towards the war could be ascertained.  They were deployed to the Pacific without horses and would never recover their mounts.

Australian forces took Lakona on New Guinea.

Three German officers and a collaborator were tried for war crimes by the Soviet Union. Abwehr Captain Wilhelm Langheld, SS Lieutenant Hans Ritz, Corporal Reinhard Retzlaff of the Secret Field Police, and Mikhail Bulanov of Kharkov were found guilty on December 18 and hanged the next day in what some inaccurately regard as the first war crimes trial.

The Soviets had, in fact, already conducted at least one.  Unlike the prior ones, however, this one, whose results were basically foreordained, was photographed by the Soviets.

Famous musician Thomas Wright "Fats" Waller died of pneumonia at age 39 while traveling on the Los Angeles to Chicago Super Chief train.