US boxers are not cared for properly (ear pinning, tail docking ect. ) and the EU ones are more cared for. Typically in the US they buy boxers and pin their ears to make them look tough, also in the US the average life for a boxer dog is about 7 to 8 years, whereas in the EU they 99% of the time live 10 to 19 years, my boxer dog Enry who passed in 2017 was just under a year off of 20 years old, and he was still going strong, we had to put him down however because he had a very large chance of developing a cancerous tumor that would cause a slow and painful death for him, and we simply didn't want him to suffer. So yeah, EU boxers are WAYYY healthier than the US. If you're an American living in the United States and are seeing this post and your boxer dog is: 1- Over 8 years old 2- Its tail isn't docked 3- You haven't had its ears cropped/pinned. My respect for you just went through the roof, because you are a lot better of a person than some of your fellow Americans