South America’s leaders were gathering Tuesday in Brazil’s capital as part of an effort by the Brazilian president to revive regional cooperation in energy, crime-fighting and the economy.
The regional bloc previously known as Union of South American Nations, or Unasur, first gathered 15 years ago to boost cooperation between the 12 South American nations. But the group eventually fractured amid the continent’s political swings and polarization, and this is their first meeting in nine years.
