Lost Coastlines

We packed up all of our bags
The ship's deck now sags from the weight of our tracks
As we pace beneath flags black and battered
Rattling our swords in service of some fated, foreign Lord

And we sail out on orders from him
But we find the maps he sent to us don't mention lost coastlines
Where nothing we've actually seen has been mapped or outlined
But we don't recognize the names upon these signs