I have 2 older daughters who are living in the UK at present and they are both really fighting with each other

Father living in Australia, daughters living in the UK. They are both fighting with each other and both of course believe they are in the right. The younger one is married with 3 boys and the older one is single. The younger one says the older one has no idea about what life and resposibilities are about. Should I try and get them together?