VA or department of defense civilian??

Hello,
I'm currently a VA employee. I'll be done with my first yr of nursing and I'm wondering if I should try working as a DOD civilian? The VA is not able to repay my loans so I am looking at my options. What are the differences in benefits? I really like the VA because everyone is really laid back. On the telemetry floor our patient/nurse ratio averages 3-1. The yearly 5 wks of vacation, 2 1/2 wks sick pay. I was thinking of the Army because I can go overseas. Is it worth it leaving the VA?

Jel