Oops, it doesn't look like 'vietnam vetrans day' is a national day..

Other days

prosecco

Prosecco Day
ruby

Ruby Day
ride the wind

Ride The Wind Day
pampering

Pampering Day
promposal

Promposal Day
brow

Brow Day
gum

Gum Day
polyamory

Polyamory Day
get funky

Get Funky Day
cuddle up

Cuddle Up Day