Within minutes of Guaido's declaration, the United States said it would recognize him as Venezuela's president. Washington has opposed Maduro's reign since he took over from his predecessor and mentor, Hugo Chavez, in 2013. It has slapped sanctions on Maduro's government for committing human rights abuses, undermining democracy and causing the country's debilitating economic crisis.
Many Latin American countries have in recent years swapped left-wing governments that supported Maduro for right-wing governments that oppose him. Brazil under its new far-right president, Jair Bolsonaro, is among the most notable turn-arounds. Colombia supports Guaidoand the oppositionto bring back stability to its neighbor. More than a million Venezuelan refugees have fled to Colombia since the country's economic crisis began.
The European Union has long criticized Maduro for undermining democracy and the rule of law, imposing sanctions in 2017. However, it has been softer in its support for Guaido than others. Germany, France and the United Kingdom say they support the opposition leader, but have not yet officially recognized him as Venezuela's president. Germany says it would recognize Guaido if Maduro fails to hold fresh elections.
Who's backing Maduro?
In Latin America, left-wing governments in Cuba and Bolivia refused to recognize Guaido's declaration. During Venezuela's boom years, Caracas sent money and subsidized oil to Cuba. In exchange, Cuba sent educated professionals, including thousands of doctors. Close ties with Maduro's government has been a cornerstone of Bolivia's foreign policy since the election of socialist President Evo Morales.
Maduro's most important backer is Russia. Moscow likes having an anti-US ally in Latin America and its biggest oil company, Rosneft, works closely with the Venezuela's state-owned oil company, PDVSA. Russia has also sold military equipment to Maduro's government and also helped it avoid default by agreeing to restructure Venezuela's $3.15 billion (€2.8 billion) debt to Moscow.
In the Middle East, Turkey and Iran voiced their support for Maduro as well. Turkey said it opposed what it called "anti-democratic developments" in Venezuela. It has also bolstered its economic ties with the Maduro government in recent years. Iran shares Venezuela's anti-US foreign policy and the two oil-exporters work together in the Organization of the Petroleum Exporting Countries (OPEC).
Who's standing back?
Mexico offered Maduro tepid support. It says it recognizes him because it wants to stay neutral. During his presidential campaign, Mexican President Andres Manuel Lopez Obrador pledged to pursue a disinterested foreign policy and focus on domestic problems.
China says it also doesn't interfere in other countries' affairs and warned the United States to stay out of the Venezuelan crisis. The Foreign Ministry said Maduro and the opposition should "remain rational and level-headed and seek a political resolution ... through peaceful dialogue within the framework of the Venezuelan Constitution." Beijing is interested in avoiding any disruption in its economic relationship with Venezuela, which owes China more than $20 billion.