On Duty

$500 first-place winner An M42 twin-barrel 40 mm self-propelled antiaircraft gun, or Duster, fires a mix of tracer and regular rounds defending an isolated artillery site. Submitted by Col. John A. O’Keefe, USA (Ret), Life Member

On Duty

$100 second-place winner Then-Sgt. 1st Class Robert F. Mimm, USA, examines a building damaged by incoming artillery fire near Yonchon, Korea, in March 1952. Submitted by CW3 Robert F. Mimm, USA (Ret), Life Member

On Duty

$50 third-place winner Two servicemembers keep watch from an M4 76 mm tank used as a pillbox on Hill 605, just west of Mundung-ni Valley in Korea in July 1952. Submitted by Col. Peter W. Cuthbert, USAR (Ret), Life Member

JULY 2015 MILITARY OFFICER 69