Strategic mobility is hard to call because of the 'speed of plot' thing that B5 hyperspace has going on, ME verse (non-relay) FTL is, IIRC, around 12Ly/hr for a commercial liner. If the older Earthforce ships can match Turian weapon ranges then it'll be very bloody for both sides, and it'll come down to tactical mobility, Earthforce has the advantage that they can lurk in hyperspace and jump in close to Turian fleets, inside the envelope of main mass accelerators (though opening themselves up to torpedo fire, which will be bad for them because with no artificial gravity they will have no defence agaisnt a gravity manipulation weapon other than point defence, and close range combat for Mass Effect is all about overwhelming point defence already) We've seen 'modern' B5 weapons engage at tens of thousands of kilometres, which is the engagement range for main weapons on Dreadnoughts and Cruisers in Mass Effect, but that was using Narn heavy lasers, which Earthforce didn't have at the time of the Earth Minbari war. Range is going to be the deciding factor in a fleet engagement. Their weapons will hurt the Turians, but they'll be getting hurt back, because the primary defence for both is CIWS and so the primary method of inflicting damage is to throw more at the opponent than a CIWS system can deal with. There's nothing in B5 that shows significant defences against impactors beyond CIWS interceptors, and the fact that boarding pods are a viable tactic shows that there's not likely to be anything keeping macro scale impactors off the hull.

I think that's going to be the issue for both sides. I doubt there will be a firepower issue for the Turians, but likewise their ships are unlikely to mount effective defenses against Earth stuff, which (IIRC) has a lot of beam weapons and lasers? The turians possess 39 such dreadnoughts, each with a main mass accelerator cannon which can fire multi-kilogram slugs at around a hundredth of the speed of light for double-digit kiloton kinetic impacts. Numbers for the turian fleet are unclear, but they likely possess hundreds of ships, ranging from ~100 meter frigates to dreadnoughts that range from 800 meters to a kilometer in length. Missiles are only used at extremely close range by fighters because of the efficiency of the laser point defense. They possess a large fleet which makes use of mass accelerator main guns, laser point defense, and 'kinetic barrier' shielding. The Centauri and Narn will not involve themselves any more than with the Earth-Minbari war.Д«asic info on the Turian Hierarchy: The Turian Hierarchy is a major power from Mass Effect controlled by a race called the turians.

First contact is botched, and a war starts between the Earth Alliance and the Turian Hierarchy. Scenario: Prior to the Earth-Minbari war, a random omnipotent being replaces the Minbari with the Turian Hierarchy from Mass Effect.

Mass effect alliance dreadnought