The 1944 Glorious May Revolution followed a military-civilian rebellion and a subsequent civic strike which successfully removed Carlos Arroyo del Río as a dictator from Ecuador's government. However, a post-Second World War recession and popular unrest led to a return to populist politics and domestic military interventions in the 1960s, while foreign companies developed oil resources in the Ecuadorian Amazon. In 1972, construction of the Andean pipeline was completed. The pipeline brought oil from the east side of the Andes to the coast, making Ecuador South America's second largest oil exporter. The pipeline in southern Ecuador did nothing to resolve tensions between Ecuador and Peru, however.