The Call Of Duty

I think today's find is a great one; I'll let the pictures do the talking:

 The caption on the last photo reads:

With Division Officers
July 27-42

No other writing on any of the photographs.

Found in "The 1943 Harvard Album" published by Harvard University.

In case you're interested, the class of 1943 included Norman Mailer:

-Click to enlarge photos-