After Fidel Castro's death, Cuba and Venezuela may turn to each other for political survival
AP fidel castro 1974
AP fidel castro 1974

(Fidel Castro in 1974.AP)

For much of the world, Fidel Castro leaves a legacy as an exalted revolutionary, perhaps nowhere more so than in Venezuela.

The two countries have been close ideologically for much of the last 20 years, and Castro's Cuba has loomed large on Venezuela's socialist landscape.

In the wake of Fidel's death, however, Cuba and Venezuela's closeness may become more about the two regimes' political survival rather than the revolutionary socialist fervor frequently invoked by Hugo Chavez and Nicolas Maduro, the two Venezuelan presidents who have drawn their country close to Cuba.

"Fidel had a huge, sort of towering role in Venezuela, especially through Chavez," Alejandro Velasco, a professor at New York University, told Business Insider.

"Chavez and Fidel not only had a very strong personal relationship going back to the 1990s," after Chavez was released from jail for leading a coup attempt in 1992, Velasco said. "But they in some ways understood that each other's power rested on the charisma that each could deploy, and did deploy."

"To me, Fidel is a father, a companion, a teacher of perfect strategy," Chavez said to Cuban newspaper Granma in 2005.

Castro Chavez Cuba Venezuela
Castro Chavez Cuba Venezuela

(Venezuelan President Hugo Chavez, center, poses with his Cuban counterpart Fidel Castro and acting Cuban President Raul Castro, right, in Havana, August 13, 2006.REUTERS/Estudios Revolucion-Granma/Handout)

Relations between the two countries quickly expanded beyond ideology. In 2000, Venezuela, which has the largest oil reserves on earth, started sending about 100,000 barrels of oil a day to the island nation to bolster its economy in the post-Soviet era.

In return, Cuba supplied Venezuela with extensive support, ranging from military advisers to thousands of doctors who continue to staff Mision Barrio Adentro, a healthcare and social-welfare program serving Venezuela's poor and marginalized communities.

The Venezuela-Cuba relationship saw something of a chill in the aftermath of Chavez's death from cancer in 2013.

The emergence of this divergence had much to do with the more distant relationship between Chavez's successor, Nicolas Maduro, and Raul Castro, who officially took over the Cuban presidency in 2008, when his brother stepped down.

"To some extent Maduro and Raul bear the same kind of burden that Fidel and Chavez didn't have, which is to say they both succeed incredibly charismatic, iconic figures within their countries and continentally," Velasco told Business Insider.

Castro Maduro Cuba Venezuela relations
Castro Maduro Cuba Venezuela relations

(Venezuela's President Nicolas Maduro, right, and Cuba's President Raul Castro attend an ALBA alliance summit in Caracas, March 17, 2015.REUTERS/Carlos Garcia Rawlins)