Does "Naked" mean Without Armour?

[Conal]

I cannot help noticing that some of those who support the "naked Celt" theory reside in North America, in which case, they may not be fully aware of the nature of the British climate. In this context, I am wondering if any clues can be found in the behaviour of native Americans, some of whom went to war in a semi-naked condition, while others wore trousers and shirts or jackets - was this anything to do with climatic differences, say between New York State and somewhere like New Mexico?

You must bear in mind that todays climate is not necessarily that of 400BC to AD100.