The Olympus class corvette is one of the oldest starship classes in the EarthForce Navy that was produced in massive numbers. Built before the Dilgar War their job was to be convoy escorts and at times escorts for EarthForce capital ships. During the Dilgar war small fleets of these ships were easily able to defend convoys from League worlds and Dilgar attacks. In the Earth-Minbari War the corvettes were assigned to escort warships like the Hyperion, and protect Earth’s civilian spacecraft but they were useless against the more advanced Minbari warships. So from protecting civilian transports they were used to maintain fleet defense and ferrying needed supplies within the fleet. At the historic Battle of the Line most of the Olympus class corvettes were destroyed as they valiantly defended Earth. Shortly after the war Earth was worried the League worlds would take advantage of its weakened state so the ships were once again mass produced.