Persia ... Phut - warriors from the extreme east and west.
Lud - the Lydians of Asia Minor, near the Meander, famed for archery (Isa 66:19); rather than those of Ethiopia, as the Lydians of Asia Minor form a kind of intermediate step between Persia and Phut (the Libyans about Cyrene, shielded warriors, Jer 46:9, descended from Phut, son of Ham).
hanged ... shield ... comeliness - Warriors hanged their accoutrements on the walls for ornament. Divested of the metaphor, it means that it was an honor to thee to have so many nations supplying thee with hired soldiers.