It was a dark day for everypony, we gathered in the dinning hall to hear the news we didn't want.
The radio crackled to life and a stallions voice appeared over it, “Due to recent conflicts with the Zebra Empire, the Equestrian Nations have decided to declare war, we do not know how this will affect our peaceful nation after a thousand years of peace but we are sure that it will not be good. It is now that I would like to declare that the Equestrian draft has been put into effect and any stallion over the age of eighteen is eligible to be pulled out, may Celestia be with us all in these dark times.” With that, the room became silent, nopony wanted to be the first to talk after hearing that. There was a few fillies starting to tear up from the news.

EQD: http://www.equestriadaily.com/2012/01/new-falloutequestria-side-stories.html