Congratulations....you can cut and paste from Wikipedia.
Without Google, or Wikipedia or any other search aid, do you personally know the difference in these things?:
1) The difference in a regular WW2 German army unit such as the Wehrmacht/Heer, Luftwaffe, Kriegsmarine and the SS?
2) Do you know what the "SS" even means?
3) Do you know the level of fanaticism and purity that it took for even a GERMAN ARMY member to transfer to the SS?
4) Do you realize the size of an SS Division and that Himmler actually made these Ukrainian soldiers as full fledged SS members OVER some of the third reich's own Wehrmacht troops?
And since you know how to be an armchair Wikipedia expert, here's some quick reading about The Armed Forces Committee for the Liberation of the Soviet Union:
As a result, some Red Army soldiers surrendered or defected in hopes of joining an army that did not exist. Many Soviet prisoners of war volunteered to serve under German command just to get out of Nazi POW camps, which were notorious for starving Soviet prisoners to death.
Meanwhile in 1944, the newly captured Soviet general Vlasov, along with his German and Russian allies, was desperately lobbying the German high command, hoping that the green light would be given for the formation of a real armed force that would be exclusively under Russian control. They were able to win over only Alfred Rosenberg to some extent.
Although Hitler's staff repeatedly refused to even consider the idea, Vlasov and his allies reasoned that Hitler would eventually come to realize the futility of a war against the USSR without winning over the Russian people, and respond to Vlasov's demands.