José Guerrero (Great White South)

José Marcó Encalada Guerrero was the 5th of, serving four consecutive terms between 1931 and 1951; making him the country's longest-serving President. Guerrero was also the first President born in modern-day Santiagan territory (his predecessors had been born in, , and ); though at the time, the area was administered by Chile, and Guerrero was originally a Chilean citizen.

Guerrero's Presidency is usually cited as one of the most significant in Santiago's history. He was elected a few years into the ; and his tenure lasted through the Spanish Civil War, and the. Continuing the policies of his predecessor,, Guerrero began to align Santiago more strongly with the ; and in the early years of the Cold War, he affirmed Santiago's position on the anti-Communist side.