I am looking for the name and author of a book series I read in the 1980's about several earth like federations (including a south american federation that was Brazilian) having to leave a dying planet in spacecraft to a new planet to colonize. I think it had earth in the title and possibly the year like 2020 or 2200. I don't specifically recall.
I do remember the first wave of of travelers included military personal and scientists. In the first novel there was a military android named 'The Admiral' with AI and kinds of offensive/defensive capabilities. Later in the second or third novel in the series there was another version of 'The Admiral' named 'The Sergeant' who was more militaristic and had more capabilities.
Thanks for anyone who can name the author or the book series.