Good advice, but as M of R pointed out, there's different rules between countries, and services. American rules and protocol might not be appropriate in the UK. If you're a squaddie, why not put the question up through the C of C to the Badge Man? Or the Adjt, if you're a Rupert (no offense - I was a Canadian squaddie). They're the experts on Dress and Deportment.

Although, I can certainly think of reasons to stay off the Badge Man's radar. Perhaps some other, less shouty, less likely to "award" extra duties just for asking, senior NCO might be able to give you the answer.

You could also check for an answer on the British Army Rumour Service. However, be careful what forum you surf to there. The NAAFI bar is extremely NSFW!!!! It's NSF families! It's NSF the elderly! It's NSF the politically correct! It's NSF anyone who can't laugh at themselves! It's NSF people who don't understand dark humour! Basically, only ex and serving military should go there. They're the only one's who'll understand it. But, I digress...

FWIW, the Canadian rule of thumb is what M of R pointed out. Full size during the day. Miniatures are only for mess kit, or civvy equivalent. That's why you get all the old feller's (and Walt's) with full size ones on Remembrance Day. I figure there's a good chance that's more-or-less universal throughout the Commonwealth.

Have a good time at the wedding. And good luck trying to behave like a proper person. Clicky here for a hilarious, but once again, rather rough in the humour department thread. You can't say you weren't warned!