Charleton Comics' Judomaster was created by Joe Gill (script) and Frank McLaughlin (art) for Special War Series #4 (November 1965), its final issue. The character then went into a six-month Limbo.
In the time-honored tradition of never let a numbering sequence go to waste, Charleton's original Six-Gun Heroes was retitled Gunmaster, which was then retitled Judomaster, beginning with issue #89. This time Frank McLaughlin took over both the scripting and artwork and would continue to do so until issue #98 (December 1967). Judomaster, along with most of Charleton's superhero lineup, ended up being sold to DC Comics, where he was killed by Bane in Infinite Crisis #7. Judomaster was re-imagined in 2007 as a female, Sonia Sato by Gail Simone, who appeared in Birds of Prey #100. She then began a brief stint with the Justice Society of America the following year Although the character spoke perfectly good English in Birds of Prey, her language skills reverted to a clumsy and stilted English in Justice Society of Ameria.
Judomaster's sidekick in the Charleton comic was Tiger, who became first his instructor and then a villain (sometimes known as Avatar) in the DC comics.
Back to the original Judomaster. He was World War II Sergeant Hadley "Rip" Jagger, who rescued the daughter of a Pacific island chieftain and was rewarded by being taught judo -- probably the last thing I would think of doing if my kid were rescued. Somewhere along the way he also learned karate and jiu-jitso.
In Judomaster #89, Jagger faces his greatest challenge yet (not saying much -- this was his second outing) in Bonzo, The Mountain Storm, a giant Sumo wrestler. Jagger has been ordered to infiltrate a Japanese prisoner camp and rescue Captain Brian Miller, who has information the Japs -- yes, "Japs" (even though the story was written in 1966, it takes place during WWII, remember?)
In a 36-page comic book, the story takes up only 20 of those pages. The rest is ads, a one-page text story and a three-page feature on self-defense. Ads were Charleton's friends
Have fun with this one.