Retired Army colonel, 70, sent to Afghanistan

From Gannett:

Dr. John Caulfield thought it had to be a mistake when the Army asked him to return to active duty. After all, he's 70 years old and had already retired - twice. He left the Army in 1980 and private practice two years ago. *** He is one of about 100 over the age of 60 known to be serving.

You go to war with the Army you have had 24 years ago.

UPDATE: Tom Toles