explains step-by-step how he painted 
From MicroMark Army Lists
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X155 Aggressor Force Independent Medium Tank Regiment, All Theaters, 1955-1956
The Aggressor Nation was a fictional force designed by the American army to facilitate training. Occupying most of Europe and the Caribbean, Aggressor Nation also had enclaves in America and Canada.
Here is presented the independent Medium Tank Regiment attached to Army Group HQ and to Cavalry Corps.