We see gloved hand-to-hand boxing training in boot camp and one character's face is bloodied from the contact.
War violence including bodies flying in the air after explosions on the ground and numerous scenes of pilots taking gunfire from enemy planes. The movie is shown in various color toned black and white tints (blueish, sepia tones) for many of the aerial dogfight scenes yet the dark blood is very visible and realistic.
We see an army tank run over a pillbox crushing everyone inside.
We see an American aircraft fire its guns on an open convertible car carrying a German General and his aide causing the car to crash and overturn, the bodies can be seen inside but there is no blood visible.
We see a German pilot's bloody face as he is carried away from his downed aircraft.