Re: Most Powerful Military Powers in Star Trek
If Starfleet had exercised control over access to the Alpha Quad through the wormhole by mining the mouth early on, the Dominion's numbers would have been largely meaningless.
Starfleet is often quite stupid.
Starfleet attempted to collapse the wormhole before the Dominion entered the Alpha Quadrant during "In Purgatory's Shadow," only to have their efforts thwarted by the Changeling impersonating Dr. Bashir. O'Brien and Dax investigated the sabotage to Deep Space 9's
systems and determined that even trilithium explosives would not be enough to collapse the wormhole due to the Changeling's intervention. As to why the wormhole was mined after the Dominion entered the Alpha Quadrant, it's difficult to say. Perhaps that's what happens when bureaucrats are calling the shots.
"He clapped his captain—his friend—on the shoulder. Yes, this man was very much like James Kirk, in all the ways that mattered." --Christopher L. Bennett-- Star Trek: Mere Anarachy, The Darkness Drops Again