Why "elf army"?

Some might ask- "why Elf Army?"

I would have to tell them that as soon as my brother-in-law had heard we named our son Oliver, he went searching for the names' meaning. He found that the English meaning of the name was "Elf Army".

I just really liked the name. But I'm enjoying having my own little Elf army- it should come in really handy when I'm too lazy or too old to do things myself.