Some war violence, but nothing graphic
The session at the matchmaker's shop is played for slapstick comedy, with a brief struggle resulting in the matchmaker's tumbling into a brazier and getting her backside scorched. Frazzled and furious, she then smashes a china teapot to punctuate an angry rant.
During the Fa family ancestors' conference, Mushu gets manhandled and tossed around a bit while the ancestors give him conflicting instructions, and he's then hit in the face with a gong. His clumsiness also gets him squashed under a heavy object at one point, with him complaining that he must have "twisted something."
During one of the Hun invasion sequences, several burning buildings on a mountainside appear briefly in the background. Shan Yu's men flush two Chinese military scouts out of the underbrush, and he briefly hauls one of them up by the throat in one hand while boasting that he demands to meet all of China's strongest armies in battle. After he dispatches them to deliver this message, one of his archers draws back his bow to shoot one of the two fleeing scouts. The scene blacks out before he lets the arrow fly, but a sinister chord as it does so heavily implies that the archer did indeed shoot and kill one of them.
When her horse Khan laughs at her attempts to impersonate manly behavior and speech, Mulan petulantly flings one of her shoes at his head.
When Khan sees Mushu's actual size for the first time, he demonstrates his contempt for how small the dragon is by trampling him. Then, when Mushu mistakes him for a cow, Khan snaps at him.
When Mushu boasts about his supposedly being able to see through her armor (while looking at her chest), Mulan takes offense and slaps him.
An unnamed soldier is shown boasting to the others that a certain tattoo he's gotten on his belly makes him immune to physical harm. Yao punches him in the stomach to test this superstition.
On Mushu's advice, Mulan introduces herself by slugging Yao, and then slaps him on the butt. Chien-Po manages to calm him before he carries out a threatened retaliation, but his insulting dismissal draws a further insult from Mushu that enrages him again. Clumsy in his fury, he accidentally punches Ling instead of Mulan, after which Ling knocks Yao into Chien-Po while Mulan makes her escape. A brief chase ensues, and then the three men stumble into a line of men, knocking them over like dominoes. This precipitates a lively camp-wide brawl played for laughs.
During the training sequence, Mulan and her fellow trainees suffer several pratfalls and other slapstick injuries: Yao takes a flaming arrow to his rear, Ling smashes his own face while trying to break a block with his head, and Mulan gets tripped, pelted with stones, and given a black eye in a sparring match. Shang takes a few blows from his trainees as well, and Chi Fu gets his mustache singed when a stray cannon shot blasts his tent to cinders. None of these injuries (though they include teeth being knocked out) are ever shown to have any permanent impact, however.
There's some mild horseplay and jostling between the men in the bathing sequence, and during the "A Girl Worth Fighting For" musical sequence.
Shang's unit finds the smouldering remnants of a village the Huns have destroyed. While no bodies appear among the ruins as he orders his men to search for survivors, one of Mulan's discoveries heavily implies that the Huns possibly found and slaughtered villagers--elderly, women, and children--along with the military men defending it.
The silhouetted bodies of several dead soldiers and war horses among ruined carts and caissons, all partially covered in snow, are shown at a distance in an extremely brief shot.
Shang takes an arrow to the armor on his shoulder, which knocks him off his horse, but doesn't manage to draw any blood.
Hun archers fail to hit any of Shang's unit with several waves of plain and flaming arrows, but do manage to set one of his ammunition caissons alight, exploding it. Shang's men return fire with cannons rescued from the caisson, successfully wiping out their attackers. Some of the Hun archers cry out as they're blasted, but no corpses or body parts are ever shown tumbling from the mountains where they were perched.
Mulan successfully touches off an avalanche that buries Shan Yu and his entire army. Only Shan Yu and five of his toughest troops survive this catastrophe. Though none of his men are shown being swept away, Shang seems to have lost many of his own troops as well, since he used to have dozens of them marching with him and is never shown with more than ten after the avalanche.
Right before the avalanche consumes him, Shan Yu furiously slashes "Ping" across the chest with his sword. While no blood shows at the time, some of it does leak through the armor later, and Shang is shown ordering his men to get medical assistance as his soldier loses consciousness from the injury.
Off-camera, someone dope slaps Yao for asking whether his dress (concubine disguise) makes him look fat.
While Shan Yu and his inner circle of Huns do engage Shang and his troops in hand-to-hand combat near the end of the movie, most of the fighting is done unarmed, and no one swinging a blade manages to draw any blood. Shan Yu does manage to do a lot of property damage with both his fists and his sword, however, as he slashes and smashes his way through a heavy gate, several pillars, a wall, and a roof in one scene.
Shan Yu's falcon also causes them a lot of trouble, dive-bombing Mulan on the battlefield and later snatching a sword out of Shang's hand. Mushu finally puts him out of commission by [spoiler]torching all of his feathers off with his breath.
Shan Yu takes a rocket to the chest which flings him into a whole tower full of fireworks, and is killed in the subsequent explosions. Again, this is shown from a distance, and we see no corpses or body parts come tumbling out.