The Sun is in the angular 10th House of authority, tradition, and public position. Great! But Saturn, one of our difficult planets, is also emphasized in the angular 4th House of family. This could mean a disconnect between public image and restrictions at home. Saturn in the 4th often describes enforced separations because of work and austere circumstances. Duty first, family second. Mars, the second of our difficult planets, is also in the angular 10th House. An elevated Mars (full force in the sign that it rules) could indicate public conflicts. However, Jupiter, the planet of luck and abundance, is sitting right next to it, which should keep things from getting too nasty. On a side note, Jupiter conjunct Mars was illustrated perfectly by the military displays on the wedding day.
Venus and Mars
Venus and Mars are both in the same sign (Aries) so that counts as a conjunction. There is unity between them. This marriage should not be short on passion, possibly fueled by arguments in hot-tempered Aries.
Let's have a look at that Moon. At 26 degrees Pisces, the Moon will not touch any planets before it enters Aries so it is Void of Course. Does this mean the marriage will dissolve? Not necessarily, but it does suggest that the emotional heart of this union could be "void." It could also mean that nothing will change from the way things are right now (the couple has been together for quite a few years after all). Whatever happens, it will be hidden from public view as Pisces is a misty sign, full of illusion.
Wedding Electional Astrology is a complicated art. I have just grazed the surface in this post (and only time will tell how this marriage will progress). An in-depth analysis would involve taking each person's chart (and the couple's composite chart) and comparing them to the wedding chart. Ideally, the wedding chart would compliment the other three charts by emphasizing the positive aspects and smoothing out the rougher ones.