Thank you for writing in to Just Answer.
I'm very sorry to hear about what you are going through.
From what you describe it sounds like what you are now experiencing is ptsd (post traumatic stress disorder). This could have set in due to either a specific traumatic experience or the whole overall stressful experience of being deployed there.
If deep breathing and rationally talking your way through these bouts of anxiety
seem to be working then by all means continue them. Another thing you can consider is counseling. Talking out your experiences can certainly help to lower anxiety. Also a counselor will be able to offer you more tools and techniques to deal with the anxiety.
Since deep breathing has somewhat helped, what else might help is mindfulness meditation
which takes the mind back to a place of deep peace and silence. You can try a CD on mindfulness meditation here
or read more about the concept here
PTSD is very much treatable in that your symptoms should definitely decrease with time and professional guidance so please do not despair.
I hope this has helped.
Please let me know if you have additional questions/thoughts.