In regards to the American attitude that is reflected in They Met in Argentina, what president enacted that policy?
Good Neighbor policy The Good Neighbor policy was the foreign policy of the administration of United States President Franklin Roosevelt towards Latin America. Although the policy was implemented by the Roosevelt administration, President Woodrow Wilson had previously used the term—but subsequently went on to invade Mexico. Senator Henry Clay had coined the term "Good Neighbor" in the previous century.
Papal mediation in the Beagle conflict The Papal mediation in the Beagle conflict followed the failure of negotiations between Chile and Argentina, when, on 22 December 1978, the Argentinian Junta started Operation Soberanía, to invade Cape Horn and islands awarded to Chile by the Beagle Channel Arbitration. Soon after the event, Pope John Paul II, offered to mediate and sent his personal envoy Cardinal Antonio Samoré to Buenos Aires. Argentina, in acceptance of the authority of the Pope over the overwhelmingly Catholic Argentine population, called off the military operation and accepted the mediation. On 9 January 1979 Chile and Argentina signed the Act of Montevideo formally requesting mediation by the Vatican and renouncing the use of force.