A good friend of mine is leaving today to begin training with the Navy to become an Electronic Warfare Linguist. Such a complete change of environment and lifestyle is sure to be a significant personal challenge, but after your experiences overseas last year I'm sure you're up to it, so best wishes and I hope all goes well! Since he quoted me it's time for me to quote him:
"There are a lot of unknowns as yet, and none of it I will fully understand until I get there." - I hear you.