Because of her traditional seclusion inside her house and behind her haik, hitherto the Algerian woman had always remained more immune to French culture and social penetration than her menfolk; thus, when the revolt began, in many a household it was the woman who provided a hard nucleus of anti-colonial militancy.

QUESTION: Fanon's account is filtered through the source being quoted — is the haik-as-weapon framing his rhetoric or a documented practice? Worth verifying against other Algerian war histories.

Horne, Alistair, A Savage War of Peace- Alge…, loc. 1230