What is the history behind Crown Prince Frederik and Prince Joachim wearing these particular uniforms every time? I'm sure I've read it somewhere but can't remember it.
Could they wear something else? I've never been too fond of either of these uniforms.
The dress code is gala, which means you are supposed to wear a gala uniform if you are entitled to one.
Joachim is a full colonel of the reserves in the army, so that's the uniform he wears.
Frederik is entitled to wear the gala uniform of all three branches. But since Joachim is already wearing the army uniform and Frederik has a close affiliation with the navy, he seemingly opts for the navy uniform.
He could also wear the air force uniform, which PH has been seen wearing quite often, but to be honest I don't think our resident fans of Frederik would appreciate that... ?
Of course I assume Frederik and/or Joachim could wear civilian if they really wanted to, but it would be odd and probably considered a snub of the armed services.
The Home Guard and the Civil Defense don't have gala uniforms. The Home Guard because they are basically a citizens militia and the Civil Defense because it goes against the non-militaristic basis of the service.
So Mary and our Marie can (fortunately) safely go for the big gowns.
A nice gallery from Svensk Damtidning:
https://www.svenskdam.se/2018/01/se-bilderna-fran-drottning-margrethes-galamiddag/
The photo of M&F looking at each other is great.
So is this photo!
By accident this is the best photo of them all:
https://www.svenskdam.se/wp-content/uploads/2018/01/mary-stella-1.jpg
And an article about our Marie's dress:
https://kungligamodebloggen.svenskdam.se/marie-i-rikke-gudnitz/