Meyer became active in HIAG, the Waffen-SS lobby group formed in 1951 by former high-ranking Waffen-SS men including Paul Hausser, Felix Steiner and Herbert Gille, when he was released from prison. He was a leading Waffen-SS apologist. Meyer announced at a 1957 HIAG rally that although he stood behind his old commanders, Hitler made many mistakes and it was time to look to the future rather than the past. He said to about 8,000 ex-SS men at the 1957 HIAG convention in Karlsberg, Bavaria, "SS troops committed no crimes, except the massacre at Oradour, and that was the action of a single man". According to Meyer, the Waffen-SS was "as much a regular army outfit as any other in the Wehrmacht".