Rottweilers are the hardest dog breeds to train due to their stubbornness and high protective instinct.
Rottweiler needs to be adequately trained because of their slightly stubborn streak.
These are the most loving and loyal family dogs, but their high energy level can be challenging to train.
The Independent nature of the Siberian husky is the main reason as challenging to train sled dogs.
These Small dogs are stubborn and independent and need to be trained by proper positive reinforcement.
Bulldogs are loving, but their stubbornness makes them less responsive during training.