Halsay’s Ride in Toykyo
http://www.lrgaf.org/military/hirohito.htm
Halsey did ride a horse, but he wasn’t Emperor Hirohito’s white stallion, who remained private property of the Emperor. Instead, he rode another horse that was supplied by Major General William Chase, the commander of the First Calvary Regiment. After reviewing the honor guard of the First Calvary Regiment, he mounted the horse and rode slowly around the bivouac area on the outskirts of Tokyo. It was an unscheduled affair, so he didn’t get to use the special saddle. “Please don’t let me alone with this animal,” the Admiral said. Upon dismounting, he grinned and said, “I was never so scared in my life.”
That is a funny story about Halsey. Not much need for horses in the navy, but given the generation he’d come from, I’m surprised he didn’t have more experience in the saddle.