The GNR Anti-aircraft and Anti-tank Division "Etna" (Italian: Divisione Antiaerea e anticarro "Etna") was a military formation of the National Republican Guard with air defence and counter-paratroopers warfare duties.

[1] The Division was established in August 1944, following contrasts with German military commands, in order to gather several autonomous units and to subordinate them to a General officer; this officer would have had a greater say in relationships with German allies.

[1] The German allies did also request the National Republican Guard to provide 7 000 personnel to strengthen their air-defence units: General Ricci rejected the German request and therefore was dismissed.

[2] The new Chief of Staff of the National Republican Guard, General Nicchiarelli, decided the establishment of an "Anti-aircraft and Anti-tank" Division with counter-paratroopers duties, which would have gathered all still-autonomous combat units of the Italian Social Republic, including the Paratrooper Battalion "Mazzarini", the Armoured Group "Leonessa", the I Assault Battalion "Roma" and other units.

In April 1945, when the Gothic Line was broken out, the southern divisional group surrendered; the Piedmontese combat group did not manage to reach Lombardy and had to surrender in various places of Piedmont.