Althought i do have 28mm WW1 stuff FOW is such good system I was toying with idea of adapting it for WW1 however 2 things could stop me.

1. FOW early war lol lots stuff to there

BUT more so

15mm WW1 figures anyone have any one who makes them so if I or some of us did Roland could get them

Its only a thought

15mm WW1?

Try Peter Pig, Minifigs, Irregular Miniatures.

Pendraken have a large range in the slightly smaller 10 mm scale. Might be worth a punt if you only wish to dabble, cos they're cheap.

I reckon the best range in 20mm is It Miniatures (available from Lancashire Games). That is what I mostly use for my WW1 stuff.
You pays your money and makes your choice....

Gary