The movie traces Marine combat battalion from training base in California to South Korea's Inchon landing to North Korea's Chosin Reservoir and retreat from there to the coast for naval rescue.
Several notable features are in this otherwise fairly routine war film. First, it's surprisingly de-politicized for its sensitive time period. The movie was produced in 1952, at a time when the war in Korea had stalemated and anti-communist fervor (Senator McCarthy) was at a fever pitch stateside. One would expect a lot of talk about red aggression and Chinese hordes. However, there's hardly any explanation in the narrative about where the war is or why it's occurring! Instead, the screenplay focuses almost exclusively on Marine Corps professionalism from officers to NCO's to recruits.
Looks to me like the movie's purpose is to restore the Marines' popular image following the Chosin debacle, without getting involved in messy politics. After all, Marine combat in WWII had been one of steady advance across the Pacific; at the same time, footage of retreat in Korea shook American confidence in that murky war.
Another notable feature is the low-budget film's effort at recreating the horrendous winter weather that plagued the retreat. I recall newsreels of the time of the steep mountains and freezing snow being almost as scary as the combat itself. I doubt the retreat over those mountain passes would have succeeded without the continuous air support.
Notable too is the general absence of sometimes silly small talk that characterizes so many WWII combat films. That's understandable since the war in Korea was never popular and little understood at home, especially after the massive Chinese intervention. On the other hand, there's the kind camaraderie and bonding among the troops that could be expected, but none of the light-hearted victory-is-certain banter of 10-years earlier.
As other reviewers note, the combat itself is mostly a series of clichés. However, the acting is good and Tamblyn is perfect for his idealized all-American-boy role. But the movie itself is now largely a curiosity dramatizing as it does one of America's few military retreats.
(In passing—in my little book, the war was characterized by two massive blunders—first, North Korea's reckless belief that the US would tolerate a unified communist Korea only a few hundred miles from post-war Japan; and second, Gen. MacArthur's over-confident belief that China would somehow allow an American army on China's border {the Yalu river}. The result of these blunders was 3-years of war, thousands of dead, and most ironically, a return afterward to the same divided country {38th Parallel} as before the devastation!)
