The Eastern Front is an excellent example to my point. In 1941 and 1942 the German Army with the German General Staff were cheered in by the Soviet states, and even some Russian towns and villages. They saw them as saviours to the Communist regime.
400,000 Soviets were willing to join the German Army against Stalin. This was, of course, until the Allgemeine-SS with the Einzatscommando got involved and made them slaves, and executed thousands. The German Army being miles in front, and fighting had no time to care what was going on behind them. They were kept in the dark because Hitler made sure of it.
Even then 38th SS-Division was Russian.