This is a Babylon 5 centered tale. It explores a BSG style exodus due to the loss of the Earth Minbari war. It becomes a crossover with nBSG as of Interlude 1 before Part 2 begins. If your desire is only to read a Battlestar Galactica fic, feel free to start there. There may be changes to the timeline for plot purposes, but I am trying to build on canon not alter it, if I can.