503rd Chemical Detachment




                The images below are courtesy of 1SGT (Retired) Dennis Moyer, 503rd Chemical Detachment,                                                     199th Infantry Brigade, April  1968 to April 1969.
                                          503rd Chemical Detachment distinctive unit insignia.

The primary mission of the unit was "People Sniffer" missions.  The unit used it on the LOH as well as the UH-1 helicopters. They also conducted defoliation missions as CS drops.  The CS bombs were E-158 and E159 CS Bombs.





























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