Ally faction selection screen for Romulans
Klingon-aligned content is playable on characters who are tied to the Klingon Defense Force faction in terms of hub and ship access.
Romulan Republic (at the end of “Turning Point”) and Dominion (at the end of “Turn the Tide”) characters are prompted to choose a faction; the Federation or the Klingon Empire.
Characters who choose the Klingon Empire get access to KDF ships, as well as the First City and Klingon Academy hubs, and are broadly treated as KDF characters in terms of the game's original PvP mechanic that divided players between two opposing factions.