history: My brother is in the Navy. My brother is in the Navy. How long has he been in the Navy?  I have a bonus son (my son's best friend) who has been in the Navy for about a year now.
current: He has been there for five years.
next: That's a nice commitment.  My father is an Air Force veteran.  I'm not too fond of the military, but it definitely makes a difference in the lives of many.