An XL Bully dog is a breed that is close to the pitbull terrier and has been crossbred with other breeds such as English bulldogs, Olde English Bulldogge, and American bulldogs. The XL refers to their size, and there are four categories: pocket, standard, classic, and XL, which tend to be around 33-50cm in height and weigh in at 20-60kg. The American Bully Kennel Club divided the American Bully into four categories, including the XL, Pocket, Standard, and Classic, whereas other registries, including the UKC, have approved one consistent size standard. The XL Bully was responsible for over 50% of the deaths caused by dogs in the UK in the period between 2021 and 2023. The breed will be banned by the end of the year following a series of attacks. The XL bully breed was linked to six of the 10 fatal dog attacks in the UK in 2022, and has been involved in at least two fatalities this year. The breed is not recognized by the main dog associations in the UK.