Of course, being in the military we are used to 'life happening'... we had everything set, the military was guaranteed (as much as possible) to stay out of our plans (we are getting married between 2 phases of a year long school) and then BAM, half of our guests aren't going to make it .... And we were planning small ... 30 guests, mostly direct family.
I am sure all will work out and I am not stressing ... just inundated with so much to do now.
Oh, and I learned I am going to be an uncle (my first nephew, not by marriage)! So there is some good news in all this!