Mary Allen
#13 According to the “FCI” standard, the German boxer should be “strong, self-confident, calm and balanced”.
He is also described as affectionate and loyal "to his master and to the whole house" and is easy to train. He shows willingness to submit to humans. The four-legged friend is "harmless in the family but wary of strangers, cheerful and friendly at play but fearless in earnest." Those very qualities make this breed a suitable family companion and an excellent watchdog.
#14 However, since he can also be stubborn and his temperament sometimes has to be controlled, the German boxer is not a beginner’s dog.
The training of Boxer puppies is basically uncomplicated but requires consistency and calm. When they are busy, they are obedient and docile and recognize you as the pack leader. If the family dog is also to be a guard dog, it is best to teach it to correctly distinguish between friend and foe as early as possible.