By groups do you mean combat groups such as regiments or Divisions, or political groups? Because I have never heard of this, The Germans named many combat Divisions as Totenkopf, Liebestandarte, Das Reich, and so on.

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They shall grow not old as we that are left grow old Age shall not weary them, nor the years condemn
At the going down of the sun and in the morning
We shall remember them. Lest We Forget