Vallejo Model Air Set: MERDC Desert ColorsVallejo Model Air Set: MERDC Desert Colors In the 1970s, the US Mobility Equipment Research & Design Command (MERDC) developed a camouflage pattern color system for vehicles of the United States Army. This consisted of a color scheme of standardized patterns for each vehicle, to be used with twelve colors. This set includes all the tones needed to represent the Gray and Red Desert patterns. Content: 6 x 18 ml 0. 6 fl oz Model Air 71. 291 US Earth