Complex sentence: The Federation originally commissioned the "Alexandria" class shortly after the One Year War, and the ships were set to be delivered in time for the Federation's naval review in UC 0083; however, setbacks during the outfitting pushed back their launch date.
Split into simpler sentences: The Federation originally commissioned the Alexandria class shortly after the One Year War, and the ships were set to be delivered in time for the Federation's naval review in UC 0083. However, setbacks during the outfitting pushed back their launch date.