Humphrey Bogart made a MASH movie during the actual Korean ๐๐๐ฃ
It was originally titled 'MASH 66' and even has a connection to 'M*A*S*H'.

There was a time when Hollywood feared no American audience would understand what โMASHโ meant. Oddly, this was during a time that real MASH units were deployed in the Korean ๐๐๐ฃ.
In March 1953, some four months before the ๐๐ฃ๐๐๐ค๐ฅ๐๐๐ would end the ๐๐ ๐๐๐๐๐๐ฅ, MGM released a Korean ๐๐๐ฃ picture called Battle Circus. The film originally carried a different name. It was titled MASH 66. The studio suits decided Battle Circus would somehow be more clear to theatergoers, as the Mobile Army Surgical Hospital ๐๐ ๐๐ค๐ฅ๐๐๐ฅ๐๐ช ๐ก๐ฆ๐๐๐ค up stakes and moves its tents like a traveling circus.
The name hardly mattered. The star put butts in seats. Humphrey Bogart headlined the movie, his only work for Metro-Goldwyn-Mayer. Bogie had recently added another Oscar his mantle thanks to his performance in 1951โs The African Queen. Few idols in Hollywood โ on the planet โ were bigger.

The 8666 preceded the 4077 in Hollywood.
Asย Major Jed Webbe, Bogart was the โHawkeye Pierceโ of the story, if you will, in that he was the main character, an Army ๐ค๐ฆ๐ฃ๐๐๐ ๐ and a ๐๐ฃ๐๐๐๐๐ฃ. That being said, his no-nonsense temperament was more Potter than Pierce. Hawkeye was a big fan of nonsense. Hawkeye served in the 4077th. Jed Webbe served in MASH 8666th, shortened to โthe 66.โ
This being a big-screen attraction, romance was involved, much as in theย M*A*S*Hย television series. The โHot Lipsโ of the plot, June Allyson played Lieutenant Ruth McCara, a raw but cool-headed nurse.ย

June Allyson in the lead nurse role
At the end of the picture, as Bogart and McCara reunite to end the ๐๐ฃ๐๐ tale on a positive note, her character runs up a hill near a Bell helicopter. Itโs a ๐ค๐๐ ๐ฅ that foreshadows the opening credits ofย MAS*H. You can practically hear โSuicide is โ๐๐๐๐๐๐ค๐คโ playing in the background. Some of the production shot atย Camp Pickett, Virginia, where real MASH units trained.ย Col. K. E. Van Buskirk, a veteran who commanded one of the first MASH units in Korean, worked as the filmโs technical advisor.

Does this bring the M*A*S*H opening credits to mind?
Like the television series (and Robert Altman film), the production aimed for a semblance of realism, which is why the two projects look uncannily similar. The tent interiors bring to mind โThe Swamp.โ The ๐ค๐ฆ๐ฃ๐๐๐ฃ๐๐๐ค are ๐ค๐๐ ๐ฅ in a similar framing, as you can see in the top image.

A โSwampโ-like tent interior
And, indeed,ย Battle Circusย andย M*A*S*Hย shared some casting.ย Philip Ahn, a Los Angeles born actor of Korean descent, landed the most significant Korean role inย Battle Circus, as a prisoner who gets his hands on a grenade. McCara defuses the tense situation.

Ahn in โ๐น๐๐ฅ๐ฅ๐๐ Circusโ and โHawkeyeโ
Ahn later appeared in three episodes ofย M*A*S*H. He was the family father in โHawkeye,โ the unforgettable fourth-season spotlight on Alan Alda. You might also recognize him as the grandfather in โExorcismโ or Mr. Kim in โChange Day.โ
The movie barely turned a profit, which explains why its goes rather overlooked in the chronicles of MASH units onscreen. But itโs worth putting on your radar if youโre a fan of Radar.