German President Joachim Gauck (R) and his Uruguayan counterpart Tabare Vazquez review honour guard in front of Uruguay's presidential house in Montevideo during Gauck's official visit to the country, July 15, 2016. REUTERS/Andres Stapff 

(L-R) Uruguay's President Tabare Ramon Vasquez, Ecuador's President Rafael Correa and Colombia's President Juan Manuel Santos talk at a balcony at Carondelet Palace in Quito, September 21, 2015. REUTERS/Guillermo Granja 

Uruguay's President Tabare Ramon Vasquez (L) waves next to Ecuador's President Rafael Correa from Carondelet Palace balcony in Quito, September 21, 2015. REUTERS/Stringer 

Uruguay's President Tabare Ramon Vasquez (R) blows a kiss as he walks on the red carpet with Ecuador's Foreign Minister Ricardo Patino at Carondelet Palace in Quito, September 21, 2015. REUTERS/Guillermo Granja 

Uruguay's President Tabare Ramon Vasquez (R) blows a kiss as he walks on the red carpet with Ecuador's Foreign Minister Ricardo Patino at Carondelet Palace in Quito, September 21, 2015. REUTERS/Guillermo Granja 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez (C) signs autographs for a supporter after casting his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez waves to the crowd after casting his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez (C) waves to the crowd after casting his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez (C) speaks to the media after casting his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez casts his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez casts his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez casts his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez casts his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez arrives to cast his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez (C) arrives to cast his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez (2nd L) shakes hands after arriving to cast his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguayan presidential candidate for the ruling Frente Amplio party Tabare Vasquez (C) arrives to cast his vote in a polling station in Montevideo, October 26, 2014. Uruguayan voters decide on Sunday whether to give the ruling coalition another term after a decade of strong growth and leftist reforms, or turn to an opposition candidate who says legalising marijuana production was a step too far. REUTERS/Andres Stapff (URUGUAY - Tags: POLITICS ELECTIONS) 

Uruguay's president-elect former leftist guerrilla fighter Jose Mujica celebrates as Uruguay's President Tabare Vazquez (R) applauds in Montevideo November 29, 2009. REUTERS/Andres Stapff (URUGUAY POLITICS ELECTIONS) 

Presidents Cristina Fernandez de Kirchner of Argentina (L) and Tabare Vasquez of Uruguay walk to the group photo session at the Mercosur leaders summit in Asuncion July 24, 2009. REUTERS/Jorge Adorno (PARAGUAY POLITICS) 

Presidents Cristina Fernandez de Kirchner of Argentina (L) and Uruguay's Tabare Vasquez walk to the group photo session at the Mercosur leaders summit in Asuncion July 24, 2009. REUTERS/Jorge Adorno (PARAGUAY POLITICS) 

Uruguay's President Tabare Vasquez (L) arrives for the opening session of a Mercosur leaders summit in Asuncion July 24, 2009. REUTERS/Jorge Adorno (PARAGUAY POLITICS) 

Uruguay's President Tabare Vasquez and Chile's President Michelle Bachelet wave before a meeting in Santiago September 15, 2008. Bolivian President Evo Morales arrived in Chile on Monday for an emergency summit with eight other South American leaders aimed at helping end the political turmoil gripping his impoverished country. REUTERS/Eliseo Fernandez (CHILE) 

Uruguay's President Tabare Vasquez arrives at the Pudahuel airport in Santiago September 15, 2008. South American presidents are racing to prevent a deeper political crisis in Bolivia, where President Evo Morales has accused right-wing opponents of trying to topple him, but diplomacy may not be enough to avert more deadly protests. REUTERS/Victor Ruiz Caballero (CHILE) 

Uruguay's President Tabare Vasquez (C) reviews the honor guard at the Arturo Merino Benitez airport in Santiago November 7, 2007. Vasquez is in Santiago to attend the XVII Ibero-American Summit. REUTERS/Ivan Alvarado (CHILE) 

Uruguay's President Tabare Vasquez gives a speech during his arrival at the Arturo Merino Benitez airport in Santiago, to attend the XVII Ibero-American Summit , November 7, 2007. REUTERS/Ivan Alvarado (CHILE) 

Uruguay's President Tabare Vasquez (L) talks with Portugal's Prime Minister Jose Socrates before their joint meeting at San Bento Palace in Lisbon September 20, 2007. REUTERS/Nacho Doce (PORTUGAL) 

Uruguay's President Tabare Vasquez (R) shakes hands with Portugal's Prime Minister Jose Socrates before their joint meeting at San Bento Palace in Lisbon September 20, 2007. REUTERS/Nacho Doce (PORTUGAL) 

Uruguay's President Tabare Vasquez (R) shakes hands with Portugal's Prime Minister Jose Socrates before their joint meeting at San Bento Palace in Lisbon September 20, 2007. REUTERS/Nacho Doce (PORTUGAL) 

Uruguay's President Tabare Vasquez talks to the journalists during a news conference at the Belem palace in Lisbon September 20, 2007. REUTERS/Nacho Doce (PORTUGAL) 

Uruguay's President Tabare Vasquez (L) and his Portuguese counterpart Anibal Cavaco Silva talk to the media during a news conference at the Belem palace in Lisbon September 20, 2007. REUTERS/Nacho Doce (PORTUGAL) 

Uruguay's President Tabare Vasquez (R) and his Portugal's counterpart Anibal Cavaco Silva review the honour guard during a welcome ceremony at the Belem palace in Lisbon September 20, 2007. REUTERS/Nacho Doce (PORTUGAL) 

Uruguay's President Tabare Vasquez (R) shake hands with the senate president Eduardo Frei Ruiz-Tagle during his visit to the Chilean parliament in Valparaiso city, about 75 miles (120 Km) Northwest of Santiago, Chile April 10, 2007. REUTERS/Eliseo Fernandez (CHILE) 

Uruguay's President Tabare Vasquez walk past an honour guard outside the Chilean parliament in Valparaiso city, about 75 miles (120 Km) Northwest of Santiago, Chile April 10, 2007. REUTERS/Eliseo Fernandez(CHILE) 

Chile's President Michelle Bachelet and Uruguay's President Tabare Vasquez (R) shake hands outside the Government Palace in Santiago April 9, 2007. Vasquez is in Chile for an official visit. REUTERS/Victor Ruiz Caballero (CHILE) 

Chile's President Michelle Bachelet (R) speaks with Uruguay's President Tabare Vasquez at the Government Palace in Santiago April 9, 2007. Vasquez is in Chile for an official visit. REUTERS/Victor Ruiz Caballero (CHILE) 

Chile's President Michelle Bachelet (L) and Uruguay's President Tabare Vasquez walk past the honor guard outside the Government Palace in Santiago April 9, 2007. Vasquez is in Chile for an official visit. REUTERS/Victor Ruiz Caballero (CHILE) 

Chile's President Michelle Bachelet and Uruguay's President Tabare Vasquez (R) shake hands outside the Government Palace in Santiago April 9, 2007. Vasquez is in Chile for an official visit. REUTERS/Victor Ruiz Caballero (CHILE) 

Uruguay Agricultural Minister Jose Mujica (R) listens during a news conference between U.S. President George W. Bush and Uruguay President Tabare Vasquez in Anchorena Park, Uruguay, March 10, 2007. Mujica spent 12 years in prison during the military rule in Uruguay. REUTERS/Larry Downing (URUGUAY) 

U.S. President George W. Bush speaks during a news conference with Uruguay President Tabare Vasquez in Anchorena Park, Uruguay, March 10, 2007. REUTERS/Larry Downing (URUGUAY) 

Uruguay President Tabare Vasquez speaks during a joint news conference with U.S. President George W. Bush in Anchorena Park, Uruguay, March 10, 2007. REUTERS/Larry Downing (URUGUAY) 

U.S. President George W. Bush and Uruguay President Tabare Vasquez shake hands following a joint news conference in Anchorena Park, Uruguay, March 10, 2007. REUTERS/Larry Downing (URUGUAY) 

U.S. President George W. Bush and Uruguay President Tabare Vasquez shake hands following a joint news conference in Anchorena Park, Uruguay, March 10, 2007. REUTERS/Larry Downing (URUGUAY) 

U.S. President George W. Bush and Uruguay President Tabare Vasquez following a joint news conference in Anchorena Park, Uruguay, March 10, 2007. REUTERS/Larry Downing (URUGUAY) 

U.S. President George W. Bush (L) and Uruguay President Tabare Vasquez (R) hug before lunch in Anchorena Park, Uruguay, March 10, 2007. REUTERS/Larry Downing (URUGUAY) 

U.S. President George W. Bush (R) and first lady Laura Bush (2nd R) pose with Uruguay's President Tabare Vasquez (L) and his wife, Maria Auxiliadora Delgado de Vazquez, before lunch in Anchorena Park, Uruguay March 10, 2007. REUTERS/Larry Downing (URUGUAY) 

The presidents of Venezuela Hugo Chavez (L), Bolivia Evo Morales (2nd L), Paraguay Nicanor Duarte (C), Peru Alan Garcia (2nd R) and Uruguay's Tabare Vasquez (R) chat after posing for an official photo at the South American Community of Nations summit in Cochabamba, December 9, 2006. REUTERS/Mariana Bazo (BOLIVIA) 

Leaders of South American countries (L-R) President of Guayana Bharrat Jagdeo, President of Venezuela Hugo Chavez, President of Brazil Luiz Inacio Lula Da Silva, President of Bolivia Evo Morales, President of Chile Michelle Bachelet, President of Uruguay Tabare Vasquez and President of Peru Alan Garcia throw clay jars containing "chicha", an alcoholic beverage, to bless the Mother Earth, an indigenous tradition, during an official photo session at the South American Community of Nations summit in Cochabamba December 9, 2006. REUTERS/David Mercado (Bolivia) 

Venezuela's President Hugo Chavez (R) salutes next to Uruguay's Tabare Vasquez at the inaugration of the South American Community of Nations summit in Cochabamba, December 8, 2006. REUTERS/Mariana Bazo (BOLIVIA) 

Brazil's President Luiz Inacio Lula Da Silva (R) talks to Venezuela's Hugo Chavez (L) and Uruguay's Tabare Vasquez (C) at the inaguration of the South American Community of Nations summit in Cochabamba, December 8, 2006. REUTERS/Mariana Bazo (BOLIVIA) 

Presidents of Uruguay Tabare Vasquez (L), Venezuela Hugo Chavez (C), and Brazil, Luiz Inacio Lula Da Silva, attend the inaguration of the South American Community of Nations summit in Cochabamba, December 8, 2006. REUTERS/Mariana Bazo (BOLIVIA) 

Leaders of South American countries (L-R) Presidents of Uruguay Tabare Vasquez, of Venezuela Hugo Chavez, of Brazil Luiz Inacio Lula Da Silva and of Bolivia Evo Morales attend the inaguration of the South American Community of Nations summit in Cochabamba, December 8, 2006. REUTERS/Mariana Bazo (BOLIVIA) 

Leaders of South American countries (L-R) Vice-President of Ecuador Alejandro Serrano, Presidents of Uruguay Tabare Vasquez, of Venezuela Hugo Chavez, of Brazil Luiz Inacio Lula Da Silva, of Bolivia Evo Morales, of Chile Michelle Bachelet and of Peru Alan Garcia attend the inaguration of the II South American summit in Cochabamba, December 8, 2006. REUTERS/Mariana Bazo (BOLIVIA) 

Leaders of Latin American countries attending the Mercosur trade bloc pose for a photograph in Cordoba, Argentina, July 21, 2006. (From L-R) Cuba's Fidel Castro, Uruguay's Tabare Vasquez, Brazil's Luiz Inacio Lula da Silva, Argentina's Nestor Kirchner, Paraguay's Nicanor Duarte Frutos, Venezuela's Hugo Chavez, Chile's Michelle Bachelet and Mexico's Foreign Minister Luis Ernesto Derbez. REUTERS/Miraflores Palace/Handout (ARGENTINA) 

Leaders of Latin American countries attending the Mercosur trade bloc pose for a photograph in Cordoba, Argentina, July 21, 2006. (From L-R) Cuba's Fidel Castro, Uruguay's Tabare Vasquez, Brazil's Luiz Inacio Lula da Silva, Argentina's Nestor Kirchner, Paraguay's Nicanor Duarte Frutos, Venezuela's Hugo Chavez, Chile's Michelle Bachelet and Mexico's Foreign Minister Luis Ernesto Derbez. REUTERS/Miraflores Palace/Handout (ARGENTINA) 

Brazil's President Luiz Inacio Lula da Silva (R) talks to Uruguay's President Tabare Vasquez at Planalto Palace in Brasilia March 16, 2006. Vasquez is on a one-day official visit to Brazil. REUTERS/Jamil Bittar 

Brazil's President Luiz Inacio Lula da Silva (R) talks to Uruguay's President Tabare Vasquez at Planalto Palace in Brasilia March 16, 2006. Vasquez is on a one-day official visit to Brazil. REUTERS/Jamil Bittar 

Brazil's President Luiz Inacio Lula da Silva (R) and Uruguay's President Tabare Vasquez shake hands before their meeting at Planalto Palace in Brasilia March 16, 2006. Vasquez is on a one-day official visit to Brazil. REUTERS/Jamil Bittar 

Uruguay's President Tabare Vasquez (L) embraces Bolivian President Evo Morales at the presidential palace in La Paz March 13, 2006. Vasquez is in Bolivia on a two-day visit. REUTERS/David Mercado 

Bolivian President Evo Morales (R) and Uruguay's President Tabare Vasquez look at an artwork of guerrilla Commandant Ernesto "Che" Guevara made with coca leaves at the presidential palace in La Paz March 13, 2006. Vasquez is in Bolivia on a two-day visit. REUTERS/Jose Luis Quintana 

Uruguay's President Tabare Vasquez (L) shows Bolivian President Evo Morales the typical "yerba mate" (herb drink) at the presidential palace in La Paz March 13, 2006. President Vasquez is in Bolivia on a two-day visit. REUTERS/Jose Luis Quintana