Brad Pitt and Angelina Jolie are coming under fire for their parenting methods

Sources tell Star that Maddox, 6, has been constantly pushing Pax, 4, around in an attempt to show him who’s boss. "But Pax is no wimp, and he fights back."

However, it's little Zahara, 3, who really rules the roost, with even the youngest in the family — the couple's biological daughter Shiloh, 22 months — coming off second best.

Shiloh is starting to show possible battle scars, with recent photos revealing the tiny girl with a chipped front tooth.

"Zahara screams and shouts at the boys when she doesn't get her own way," one of the sources revealed to Star. "Z is always pushing or scratching Shiloh."

"Ange gets worried when Shi plays with the other kids. She always comes back with a scraped knee or a fat lip!"

The chaos has reached the point where even normally unflappable Angelina has admitted to losing control of her unorthodox household.

"Four is kind of kicking our ass," Ange admitted in a recent TV interview about her brood. "But we kind of feel like, damn it, we're up for the challenge!"

Image WENN