Out of curiosity what would the ideal dev answer you ' re looking for contain ? <| sep |> Are you talking about the Korean War 195053 where China intervened after invasive forces NORTH KOREA ! were stationed at their borders ? I did specify agressive wars , as in where they were the initial aggressors Or do you talk about the Korean Wars before 670 and earlier ? Because the 1300 years between that , there was nothing . Yes , the current government is relatively young , but then again so is the US '. Now , if we talk culture . I think your understanding of China is biased , but this is not raskhistorians <| sep |> My experience is that the second dog , if younger , will somewhat model on the older dog , especially for things like potty time . But direct behavior cues the dog will still need to learn from their human . But I haven ' t witnessed this on broad scale , just my own experiences and what I ' ve seen with family and friends . On the flip side , sometimes if the younger dog has a boisterous personality , they may pester the older dog rather than modeling off of it . I have seen this more with young males being rambunctious around elderly males