[PAR] [TLE] Montoneros [SEP] Montoneros (Spanish: "Movimiento Peronista Montonero-MPM" ) was an Argentine leftist terrorist and urban guerrilla group, active during the 1960s and 1970s.  The name is an allusion to the 19th century cavalry militias, called Montoneras, who fought for the Partido Federal during the Argentine Civil Wars. [PAR] [TLE] Operation Primicia [SEP] Operación Primicia (] , "Operation Scoop") was a large guerrilla attack that took place on 5 October 1975, in Formosa, Argentina.  It was the largest attack ever launched by the paramilitary group Montoneros, which attempted to seize the barracks of the 29th Forest infantry regiment.  This attack worsened the Dirty War, and indirectly led to the 1976 Argentine coup d'état the following year.
[PAR] [TLE] Montoneros [ SEP ] Montoneros ( Spanish : " Movimiento Peronista Montonero - MPM " ) was an Argentine leftist terrorist and urban guerrilla group , active during the 1960s and 1970s . The name is an allusion to the 19th century cavalry militias , called Montoneras , who fought for the Partido Federal during the Argentine Civil Wars . [PAR] [TLE] Operation Primicia [ SEP ] Operación Primicia ( ] , " Operation Scoop " ) was a large guerrilla attack that took place on 5 October 1975 , in Formosa , Argentina . It was the largest attack ever launched by the paramilitary group Montoneros , which attempted to seize the barracks of the 29th Forest infantry regiment . This attack worsened the Dirty War , and indirectly led to the 1976 Argentine coup d'état the following year .
During which decades was the terrorist group , which launched Operation Primicia, active?
During which decades was the terrorist group , which launched Operation Primicia , active ?
1960s and 1970s
1960s and 1970s