[AndreasB]

I'd go with the military attache. Works well in terms of ranks and age.

• Müller, Rolf (Oberst)

1959 - 1962 Militärattaché in Albanien
1963 - 1967 Militärattaché in Vietnam1
968 - 1974 Militärattaché in Khmer
1975 - 1978 Militärattaché in Algerien

http://de.wikipedia.org/wiki/Liste_d...schen_Republik

Would have been 58 when he left the service, normal age for a colonel, I guess.

All the best

Andreas