How do you get along with your brother/sister?

Never knew my sisters. They died in infancy, My brother was 9 years older than me, so we didn't have much of a childhood together. He was very supportive during my adolescent years though. Not that much interaction later in life, given he lived in Tokyo most of that time. What interaction we had was cordial, focused on things we shared in common and family history, accepting that our political and social views of the world were quite different since he grew up in the Silent Generation and I in the 60's. I actually became sort of a surrogate father to his children -- even gave his daughter away in marriage -- because he was estranged from them. He is no longer with us.