There is a calendar in the Japanese commander's hut with an American lady on it. As the months progress her clothes get more inappropriate.She is wearing a bikini in one image

A woman in a strapless swimsuit that shows cleavage, shoulders and legs.

Some shirtless men.

A small boy in a tribal village is seen naked from the waist down, his penis is barely visible. But this scene is not explicit in any way.

Two men try to escape, both are shot and they die.

A character is slapped and characters are mistreated and tortured by Japanese soldiers.

Some mild scenes of fistfights and arguments shown.

Some mild war violence. Blood is visible several times throughout the movie, most notably when a man is wounded in the foot and after some men are killed in the river.

None.

Two characters share a drink in a couple scenes.

Relatively intense throughout.

The climax is intense.