Warning: SPOILERS for Star Trek: Picard Season 3, Episode 5 – "Imposters"Star Trek: Deep Space Nine's Dominion are one of the most lethal enemies the United Federation Of Planets has ever faced, but are they more powerful than the Borg? The Dominion was introduced in DS9 season 2, a sort of anti-Federation bent on conquest. Like the Federation, the Dominion consisted of several different species, though unlike the Federation, they were not equals. The Dominion utilized the genetically enhanced Jem'Hadar as their vicious army, and used the similarly engineered Vorta as diplomats. The Founders of the Dominion were the Changelings, a powerful shape-shifting species who believed themselves to be superior life forms to solid humanoids.
The Borg debuted in the Star Trek: The Next Generation season 2 episode "Q Who," where the omnipotent trickster Q (John de Lancie) threw the USS Enterprise-D into an uncharted area of space to test if Captain Jean-Luc Picard (Patrick Stewart) and his crew were truly ready for what awaited them. The Enterprise-D quickly encountered the Borg, who would have easily decimated them had Q not intervened at the last moment. From that point on, the Borg became a consistent and merciless enemy of the Federation.
