During World War II, Bulldogs were often likened to Prime Minister Winston Churchill and his defiance of Nazi Germany. When the English settled in the Americas, their Bulldogs came with them. Dedicated bulldog fanciers formed The Bulldog Club (England) in 1878, and the Bulldog Club of America in 1890. Breeders have worked to reduce/remove aggression from these dogs. Most have a friendly, patient, but stubborn nature.