Oops, it doesn't look like 'atomic veteran awareness day' is a national day..

Other days

boba

Boba Day
bounce

Bounce Day
tell a fairytale

Tell A Fairytale Day
lash

Lash Day
blanket fort

Blanket Fort Day
boy friend

Boy Friend Day
law

Law Day
stud

Stud Day
offer

Offer Day
fiancee

Fiancee Day