9. American Bulldog
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The American Bulldog is a powerful, muscular breed originally used for farm work and hunting. They are incredibly strong-willed and protective, making them difficult for inexperienced owners to handle.
American Bulldogs are banned in Denmark and Singapore, where their strength and past aggression incidents have led to restrictions. Proper socialization is key to preventing aggressive tendencies.
Why They’re Banned: Strength, guarding instincts, and dominance. Where They’re Banned: Denmark, Singapore, and some parts of Europe.