In Eastern Africa, it was determined that Italian forces based on Ethiopia posed a threat to the British Aden Protectorate, thus it was decided that an offensive would be necessary, under which the Gladiator would face off against the Italian biplane fighters: Fiat CR.32s and CR.42s. On 6 November 1940, in the first hour of the British offensive against Ethiopia, the Fiat CR.42 fighters of the 412a Squadriglia led by Capt. Antonio Raffi shot down five Gloster Gladiators of 1 SAAF Sqn; among the Italian pilots was the ace Mario Visintini. Tactically, the SAAF aircraft erred by engaging the CR.42's in a piecemeal fashion and not en masse, and were anyway heavily outnumbered.[71]