In 1982, the four guerrilla groups, EGP, ORPA, FAR and PGT, merged and formed the URNG, influenced by the Salvadoran guerrilla FMLN, the Nicaraguan FSLN and Cuba's government, in order to become stronger. As a result of the Army's "scorched earth" tactics in the countryside, more than 45,000 Guatemalans fled across the border to Mexico. The Mexican government placed the refugees in camps in Chiapas and Tabasco.