Nothing soothes like a mother’s love, and Caitríona’s Balfe‘s impassioned portrayal of a devoted mama bear protecting her family amid social upheaval in Kenneth Branagh‘s Belfast (in theaters Nov. 12) serves as both a balm and a testament to the scars of her homeland’s bitterly divided past.

EW’s The Awardist recently caught up with the 41-year-old Outlander star (and new mother of one) out of the Toronto International Film Festival, where her turn in Branagh’s semi-autobiographical account of Ireland’s violent, three-decade sectarian conflict received standout reviews at the top of Oscars season. Below, Balfe breaks down how she fused personal history with Branagh’s heartfelt story, preparing to dance a sweet jig with costar Jamie Dornan for one of the film’s most touching scenes, and the catharsis of honoring of Ireland’s lives “destroyed by this ridiculous sectarianism and ideology.”