. . . . "Army Group Mackensen (Poland)" . . . . . "1919" . . "Army Group Mackensen (Poland)" . "1915" . . "''Heeresgruppe'' Mackensen" . "''Heeresgruppe''" . "Army Group Mackensen in Poland" . "''Heeresgruppe Kiew''" . . "Army Group Linsingen" . "Army Group Kiev" . . "Army Group Eichhorn-Kiev" . "Army Group Mackensen" . .