The film contains beautiful war scenery with buildings and parts of streets completely destroyed. The other part of the sets are jungle sets built in a studio where the film will take place at night.
The interest of the film is to show the war in Indochina led by the French. It is about a French army commando with an American who will try to destroy an arms depot to avoid that the French parts of Indochina are bombed by the communists.
This pretext allows Samuel Fuller to build an effective war film, but also to talk about subjects such as racism and psychological problems related to war.
Samuel Fuller does not show heroes, because none of the characters are heroes, except perhaps Angie Dickinson who plays an Indochinese woman who has had a child with an American. She helps the commando to get through the jungle to the communist village that houses the weapons.
One of the curiosities of the film is Lee Van Cleef in a very short role who plays the communist leader of the Indochinese. Curiosity, because it is a character with dialogues (his filmography has often used him in roles with few words).
Otherwise, the Samuel Fuller system works well: a mix of studio shots, real set shots, documentary stock shots, edited together; or else, the dialogues are ampouled at times, but they are effective. And a rather effective direction of actor who makes that each of the characters has its function. The whole thing works quite well and remains captivating until the end. Obviously one of the messages of the film is also to show the horror, the stupidity and the absurdity of war.
That is to say that we are not in the subtlety, the messages of Samuel Fuller are well inserted in a very insistent way so that the spectator captures them well.
All in all, the film remains very interesting, because there are very few films about French soldiers during the Indochina war!