Armed strike declared by the PCP-SL in Alto Huallaga
In June 1987, the PCP-SL declared an armed strike in Alto Huallaga, forcing the rural population to block the Marginal Highway between Tulumayo and Nuevo Progreso. This measure demonstrated the PCP-SL's total control over the countryside and its ability to cut off vehicular communication in the region.
At the end of May 1987, the PCP-SL attacked the Uchiza police post and in June declared an armed strike throughout Alto Huallaga. Between Tulumayo and Nuevo Progreso, the PCP-SL forced the rural population to participate in blocking the road, destroying asphalt and painting the facades of houses along the Marginal Highway. These first strikes were a powerful measure of force with which the PCP-SL not only succeeded in cutting off vehicle communication between Tingo María and the rest of the Alto Huallaga, but also demonstrated its total control over the countryside which it 'emptied' to close off traffic. The strike demonstrated the Shining Path's dominance over the region at that time.