Jack initially dismisses Piggy and the influence he has on the group. He belittles Piggy's intelligence and continually undermines his authority in order to maintain control over the other boys on the island. Eventually, Jack's treatment of Piggy escalates into physical violence, culminating in Piggy's tragic death.
Jack
Piggy
Piggy's glasses.
Jack orders the boys to kill Piggy and Ralf.
Roger and Maurice are the ones that attack Jack and Piggy because Jack wants Piggy's glasses.
In the story "Lord of the Flies", Jack scolds Piggy for speaking out of turn. Jack slaps Piggy across the face, breaking one of the lenses of his glasses.
ralph to piggy
Simon retrieved Piggy's spectacles after Jack had knocked them off, when he had smacked Piggy across the head.
Piggy is the boy who does not dance at Jack's first feast in "Lord of the Flies." He is not physically capable of dancing due to his asthmatic condition, and he also struggles to keep up with the other boys due to his lack of physical fitness.
To show his power
piggy
I hope you mean from the other tribe .. Jack stole piggy's glasses