The arrival of thousands of refugees from Central America stressed Mexico's relationship with Guatemala, at one point coming close to war as well as a politically destabilized Chiapas. Although Mexico is not a signatory to the UN Convention Relating to the Status of Refugees, international pressure forced the government to grant official protection to at least some of the refugees. Camps were established in Chiapas and other southern states, and mostly housed Mayan peoples. However, most Central American refugees from that time never received any official status, estimated by church and charity groups at about half a million from El Salvador alone. The Mexican government resisted direct international intervention in the camps, but eventually relented somewhat because of finances. By 1984, there were 92 camps with 46,000 refugees in Chiapas, concentrated in three areas, mostly near the Guatemalan border. To make matters worse, the Guatemalan army conducted raids into camps on Mexican territories with significant casualties, terrifying the refugees and local populations. From within Mexico, refugees faced threats by local governments who threatened to deport them, legally or not, and local paramilitary groups funded by those worried about the political situation in Central American spilling over into the state. The official government response was to militarize the areas around the camps, which limited international access and migration into Mexico from Central America was restricted. By 1990, it was estimated that there were over 200,000 Guatemalans and half a million from El Salvador, almost all peasant farmers and most under age twenty.