A challenged to us or a threat?
I can see maybe some great dane heritage in the facial structure & rottweiler in the body frame. Can you?
A challenge? But I wouldn't recommend trying it lol. Corsos are very protective and not great with strangers. I've owned bullmastiffs, a rottie, lots of pits, a chow, GSD, ridgeback, and lots of other breeds and mutts... but a corso is different.
I moderate a group for the breed, and often see people who underestimated them and they became very aggressive. These are not gentle giants, even though some people incorrectly call them that. Those people are often the people taking them to a kill shelter several months after calling them that.... they are great with their families, but that's about it.
An amazing breed if the owner trains them, and fully understands their natural protective instincts. Their bite force is said to top a pitbulls and a German shepherds... combined. A playful bite can be a serious problem to small humans and animals. A big responsibility, but completely worth it in the right hands.
The light color one, Battle, is a corso mix, I believe possibly mixed with pit, or great dane... maybe weimereiner lol... I'm not 100 percent sure...
The dark one, is 100 percent Italian mastiff. His father is a world champion. Named Xman. Currently in Spain. I waited over a year for this exact breeding. Both parents were blue/ grey, but recessive genes cause the color, tan points, like a rottie. He was the only one his color out of 13 pups. I had to have him.