In the Cauca mountains of southwestern Colombia, the Indigenous Nasa people have been on the receiving end of Colombia's armed conflict for decades. Sandwiched between several fronts, they oppose the presence of both the rebels and the army, which is trying to recapture this strategic mountain range from the rebels. Faced with renewed conflict and an upsurge in violence, 3,000 Indigenous Guards are looking after the safety of the Nasa people. FRANCE 24's Pascale Mariani, Juan Orozco, Nadège Mazars and Steven Grattan report.