How about, every time you were posted?
Something new, new friends, new challenges, new and exiting places but you knew that you would be able rely on whoever you met and worked with.
Later in any long career there was also the meeting of old friends in different places.
I always remember my 1st time in Akrotiri Electronics Centre and meeting a guy I'd last seen 6 or 7 years before we swapped 'hellos' as though it had been yesterday.