In 1845, North-Western Territory, British North America a young Victor visited James while Victor's father had a confrontation with James' father. James witnessed his father's death and in an act of vengeance, killed Logan using bone claws which protruded from his hands. With his dying breath, Thomas Logan told James that he was also his son. James ran away, but was overtaken by Victor. Victor said that they were brothers and vowed that they would look out for each other no matter what. In the following years, Victor and Logan fought together throughout the American Civil War, World War I, and World War II. During the Vietnam War, Victor grew increasingly violent and uncontrolled and attempted to rape a young woman and then brutally attacked the soldiers who tried to stop him leading to both him and Logan being placed in front of a firing squad.
Their unique regenerative abilities kept them alive, bringing them to the attention of Major William Stryker who invited them to join an all-mutant team called Team X. During a mission to retrieve a meteorite from a diamond trafficking operation in Lagos, Nigeria, Stryker and the team interrogated nearby villagers to see if there were any other meteorites. The village chief refused to tell Stryker the origins of the meteorites, as they believe them to be sacred. Stryker then ordered Victor to kill the chief. The whole village descended into chaos as Stryker's team started killing the civilians. Logan was disgusted by the murders committed by his teammates and abandoned Victor and the group.
Their unique regenerative abilities kept them alive, bringing them to the attention of Major William Stryker who invited them to join an all-mutant team called Team X. During a mission to retrieve a meteorite from a diamond trafficking operation in Lagos, Nigeria, Stryker and the team interrogated nearby villagers to see if there were any other meteorites. The village chief refused to tell Stryker the origins of the meteorites, as they believe them to be sacred. Stryker then ordered Victor to kill the chief. The whole village descended into chaos as Stryker's team started killing the civilians. Logan was disgusted by the murders committed by his teammates and abandoned Victor and the group.
Eight Years later, Victor hunted down and began to kill the other members of the team, starting with Bolt. Soon Kayla Silbverfox was also murdered by Victor. A furious and grieving Wolverine found Victor in a bar and asked him why he killed her. Victor replied by saying "How else am I going to get your attention?" The two then lunged themselves after each other. Victor easily defeated Logan and snapped off his bone claws on his left hand.
Later, Victor captured a teenage Scott Summers for Stryker. Victor then confronted Wolverine again in New Orleans, after killing John Wraith and taking a blood sample from him. Victor fought Wolverine only to be interrupted by Gambit. Wolverine was told that Victor and Stryker were subsequently working together to capture various mutants, culminating in tricking Wolverine into agreeing to have adamantium bonded to his skeleton by claiming that Victor had gone rogue and had killed the woman Wolverine loved. Wolverine then left, after learning this. Victor, angered at Stryker that he let Wolverine go, demanded the adamantium procedure. Despite the animosity between the two of them - made even worse when Stryker revealed that, contrary to his deal with Victor, he cannot merge adamantium to his skeleton because it would kill him (his healing factor is less powerful than Logan's). In an act of rage, Victor tried to kill Kayla for real. Wolverine heard Kayla's screams and attacked Victor and defeated him in combat . Finally having the chance to kill Victor, Wolverine chose not to give in to his animal instincts and instead knocked him out. As Wolverine and Weapon XI are fighting, Weapon XI overpowered Wolverine and prepared to decapitate him. Victor returned to aid his brother. Wolverine and Victor, now working together, were able to decapitate Weapon XI; sending its head, still firing optic blasts, down into the cooling tower. Wolverine coldly informed Victor that despite his help, their relationship was over. Victor simply reminded him that they are brothers, and they can never be finished. Victor also claimed that only he gets to kill Wolverine. Victor then jumped off the side of the cooling tower.