1945 Katsuyama killing incident
The Katsuyama killing incident in 1945 was a killing of three African American Marines by Okinawans from the Katsuyama village near Nago, Okinawa, after the Battle of Okinawa, shortly before the end of the war in the Pacific. Many years later some of the villagers confessed that every weekend three black United States Marines had allegedly been visiting the village around that time and every time they violently took the village women into the hills with them and raped them. When the Marines started to confidently carry out their weekly ritual unarmed, the villagers reportedly overwhelmed the men one time and killed all three. Their bodies were hidden in the nearby cave out of fear for retaliation against the village, a village secret until 1997. Since the killings, the cave has been known as 'Kuronbō Gama,' by locals which translates to the "Cave of The Dark Skinned Boys". 
Villagers revealed long after the attack that the Marines were so confident that the villagers were powerless that they came to the village without weapons. Taking advantage of this, the villagers ambushed them with the help of two armed Japanese soldiers who were hiding in the nearby jungle. Shinsei Higa, who was sixteen at the time, remembers that "I didn't see the actual killing because I was hiding in the mountains above, but I heard five or six gunshots and then a lot of footsteps and commotion. By late afternoon, we came down from the mountains and then everyone knew what had happened."
To cover up the deaths, the bodies were dumped in a local cave that had a 50-foot (15-m) drop-off close to its entrance.
When the men did not return to their Marine Corps posts, they were listed as possible deserters in the summer of 1945. After a year with still no evidence of what happened to them, they were declared missing in action.
Kijun Kishimoto was almost thirty during the incident and grew up in Katsuyama. He was away from the village when the men were killed. In an interview, he said, "People were very afraid that if the Americans found out what happened there would be retaliation, so they decided to keep it a secret to protect those involved."
Finally, a guilty conscience led Kishimoto to contact Setsuko Inafuku (稲福節子), a tour guide for Kadena United States Air Base in Okinawa, whose deceased son Clive was also a victim of sexual assault, and who was involved in the search for deceased servicemen from the war. The two searched for the cave in June 1997, but could not find it until August, when a storm blew down a tree which had been blocking the entrance. The local Japanese police were informed but they kept it secret for a few months to protect the people who discovered the location of the bodies.
The incident was reported by Ms. Inafuku to then Kadena Air Base 18th Wing Historian MSgt James Allender, who in turn reported it to the Joint Services Central Identification Laboratory at Pearl Harbor. Once the bodies were recovered by the Army, the men were all identified, using dental records. Their names were Pfc. James D. Robinson of Savannah, Ga., Pfc. John M. Smith of Cincinnati, and Pvt. Isaac Stokes of Chicago, all aged 19. The cause(s) of death could not be determined.
No plans were made to criminally investigate the incident by either the United States military or the Okinawa police.
After the Battle of Okinawa, the island chain was occupied under the United States Civil Administration of the Ryukyu Islands until 1972. At that time, the U.S. government returned the islands to Japanese administration. Under the Treaty of Mutual Cooperation and Security, the United States Forces Japan (USFJ) have maintained a large military presence: 27,000 personnel, including 15,000 Marines, contingents from the Navy, Army, and Air Force, and their 22,000 family members are stationed in Okinawa.
- Rape during the occupation of Japan
- Sexual assault in the U.S. military
- 1955 Yumiko-chan incident
- 1995 Okinawa rape incident
- 2002 Okinawa Michael Brown incident
- Sims 2000
- Okinawa legend leaves unsettling questions about Marines' deaths, Locals call it Kuronbō Gama.'
- https://www.japandict.com/黒ん坊 Kuronbō is an ethnic slur combining two words referring to a "dark skinned" or "very tanned person" and the word "boy".
- Cullen 2001
- 沖縄県の基地の現状(in Japanese), Okinawa Prefectural Government
- Cullen, Lisa Takeuchi (August 13, 2001). "Okinawa Nights". TIME. Retrieved July 12, 2010.
- Dower, John W. (2000). Embracing defeat: Japan in the wake of World War II (2000 ed.). W. W. Norton & Company. ISBN 978-0-393-32027-5. - Total pages: 676
- Sims, Calvin (2000). "3 Dead Marines and a Secret of Wartime Okinawa". The New York Times. Retrieved July 12, 2010.
- Svoboda, Terese (May 23, 2009). "U.S. Courts-Martial in Occupation Japan: Rape, Race, and Censorship". The Asia-Pacific Journal. 21-1-09. ISSN 1557-4660. Retrieved October 25, 2010.