In the 1970s the US Armed Forces intended to replace the olive drab mono-colour camouflage with a new modern multi-tone camouflage pattern. These efforts led to three major trials that were carried out to a great deal with US units on West German soil. The multi-tone camouflage schemes MASSTER, MERDC and DUALTEX would up till the late 1980s dominate the look of US Army vehicles on Central European roads. This publication tells the background story of these three camouflage pattern trials underlined by contemporary indicative colour photographs and modern computer-enhanced colour samples. This is the first comprehensive and fully illustrated documentation on the subject.