Besides having visited Mexico to attend a Latin American conference the year Philippine-Mexican Friendship Year was proclaimed in which he visited Guadalajara and Navidad where he unveiled a monument to Legazpi and Urdaneta, while posted in Madrid, Guerrero understood the historical antecedents of Philippine-Mexican relations. In 1963, speaking in Madrid, he discussed with extraordinary erudition the close relations, deep connections and the surface differences between the Philippines and Latin America, or to use his term, Iberian America. More than the differences, superficial at best, were those lessons learned from Latin American experiences. Pointing out the Malolos Constitution as having derived its inspiration from the constitutions of Costa Rica, Mexico, Brazil, Nicaragua and Guatemala whose common roots were found in the French Constitution, Guerrero disclosed that the 1935 Philippine Constitution contained safeguards and guarantees owing to the political history of Latin America. Among those were the provisions banning the re-election of a president to prevent the perpetuation of one-man rule, and the care of the national defence placed under a civilian secretary to forestall military takeovers.

But, again greater than these lessons, Guerrero uncovered “the depth of Philippine-Iberian American kinship” in political concepts, that distinguished the Philippines, although Asian in biology and destiny, from the rest of Asian countries but inevitably linked it with Latin America. The Philippines and Latin America shared problems common in underdeveloped countries almost possessing a commonality found in Hispanic culture, in

producing a political and social human prototype in the manner of a Don Quixote and Don Juan. This political culture manifested once when Filipinos under Quezon, Osmeña and Roxas thought that political independence was able to “fix everything, when in truth it was going to reveal and to put everything out of order” because economic independence was left out of the equation.