Map...map...hang on...
Can be found about a quarter/third of the way down this page:
http://efni.org/Dilgar_War.htmIt's big, tough to miss. Not sure how canon-friendly it is. Much earlier timeframe, too.
Drakh attack Earth in November 2266.
The Narn military was effectively non-existant following the bombardment of their homeworld, and the Centauri probably trashed that system pretty thoroughly, including complete destruction of whatever orbital shipyards there were. They might even have deorbited the shipyards as an auxilary to the mass driver bombardment. Narn is actually probably the worst-off of the Narn's worlds.
Narn military strength probably amounted to under twenty G'Quan cruisers at the end of the Narn-Centauri War, perhaps even under ten. These ships would likely be damaged and have only a few fighters left to boot. Perhaps a smattering of badly depleted ground-based fighter wings as well.
Near-anarchy would probably set in on the spacelanes. The Raiders would be all over the place, since the Narns can muster no effective defense. The first order of business from a military standpoint then would be to secure their own spacelanes and jumpgates again.
This is a comparatively easy task, actually, accomplishable with fighters and defense platforms. It would take them some time, yet it would also be a case of exponential growth: the more military ships there are, the more civilian ships make a "safe and timely arrival", which helps rebuild the economy, which creates more funds for military ships, and so on. The Raiders would have it all their own way for some time, but when the end comes, it will come quickly.
This would leave the Narns with a large, battle-hardened fighter corps. At that point they would work on rebuilding their interstellar fleet, probably focusing mainly on carrier-type craft to bring their main asset, their fighters, to bear. Capital ships might hit and run, but the main Narn tactic would be to deliever a large number of Frazis to the battlefield as rapidly as possible.