This study examined factors underlying collective action tendencies in a context of severe disadvantage and high repression. Drawing on the Social Identity Model of Collective Action (SIMCA; van Zomeren, Postmes, & Spears, 2008), we tested the roles of group-based anger, participative efficacy, group identity—SIMCA variables—but also fear. Although SIMCA has been widely used in various social contexts, little is known about how well it applies to severely disadvantaged groups in highly repressive situations. In the study of female Filipina domestic workers (N = 123) in Beirut, Lebanon, results provided partial support for SIMCA, such that identity indirectly and positively predicted collective action intentions via efficacy, but not anger. Importantly, fear modulated the paths from anger and efficacy to collective action intentions. Efficacy and anger positively predicted collective action tendencies among individuals low, but not high, in fear. These findings attest to the importance of studying political actions among underrepresented populations. [ABSTRACT FROM AUTHOR]