The Yadallan Republic is a mercantile trade association founded in the early twenty first century. Yadalla itself had space faring abilities and warp drive for several hundred years prior but only became a united planet after invasion was threatened from an unknown alien power towards the outer ridge of explored space in the Beta Quadrant. This threat, which was later identified as a race known as the “Romulans” withdrew from Yadallan space following a defense trade signed with several of Yadallan’s trading partners.