Dogs starting to Fight?

like already mentioned it is a pecking order and when they are evenly matched it will go on for a good while...sometimes even when one becomes the top dog that dog will continue to inflict punishment as a reminder to the other dog that he is top dog...I see it more as bullying and that is one habit I can not stand in people or dogs...

if you have access to 2 shock collars put them on and when one starts up shock the pi$$ out of the dominant male and shock the other as well...make it an experience they won't forget...repeat as needed...IMO, if you only shock the dominant male the submissive male will get cocky after a while and the fighting will start back up again at a later date because the dominant male will retaliate at some point because he knows he is top dog...that is why the punishment should be for both dogs...does not matter which starts it...