Lordaeron Footsoldiers were human footmen of the 1st Legion. These poor souls were the ones who followed Arthas to Northrend. They met their end when Arthas decided to create his army of the damned.
This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.
They may have become the Skeletal Footsoldiers that are walking around the area near the First Legion Forward Camp.