issues to consider
First, is the work required on a Sunday because there is something inherently special needed on that day, or just because something was scheduled for that day? For example, it is essential police and physicians work on Sundays because emergencies still happen on Sundays. On the other hand, if a store were to hold a 'one-day only sale' and made it a Sunday instead of a Saturday, that would just be a scheduling issue. With Army-related work, either option is possible.
But, for me, the bigger issue would be why you don't want to work that day. I mean this sincerely, but are you being legalistic? "A Christian cannot work on Sundays." Or, are you just trying to follow a principle of taking the Lord's Day off to worship? If it's the second, do you actually take the whole day for that purpose (as the Puritans did), or will you still watch the NFL games those days?
Just some quick thoughts.
Dr. Bruce Sabin
Biology Teacher, Haines City IB World School
Member, FBC Frostproof, FL