National Guards look on at a fire under the tank they are in, started after the tank was hit by a Molotov cocktail, during a protest against Venezuelan President Maduro’s government in San Cristobal

National Guards look on at a fire under the tank they are in, started after the tank was hit by a Molotov cocktail, during a protest against Venezuelan President Maduro’s government in San Cristobal

National Guards look on at a fire under the tank they are in, started after the tank was hit by a Molotov cocktail, during a protest against Venezuelan President Nicolas Maduro’s government in San Cristobal, about 410 miles (660 km) southwest of Caracas, February 27, 2014. Pope Francis called on Wednesday for an end to violence in Venezuela that has killed at least 13 people and urged politicians to take the lead in calming the nation’s worst unrest for a decade. REUTERS/Stringer (VENEZUELA – Tags: POLITICS CIVIL UNREST MILITARY TPX IMAGES OF THE DAY)