Luis García Meza came to power in a coup named for a byproduct of this crop. For 10 points each:
[10m] Name this crop, growers of which were killed in the Villa Tunari massacre. Evo Morales served as president of a trade union for growers of this crop, whose interests were later promoted by Morales' MAS party.
ANSWER: coca [or cocaleros; do not accept "cocaine"]
[10e] After coming to prominence after protests against the privatization of the water supply of Cochabamba, Morales served as the first indigenous president of this South American country.
ANSWER: Bolivia [or Plurinational State of Bolivia]
[10h] This man served as president during the Cochabamba Water War and pursued a controversial policy of eradicating coca production. This president overthrew the leftist Juan José Torres.
ANSWER: Hugo Banzer [or Hugo Banzer Suárez; prompt on Suárez]
<Govind Prabhakar , History - World - Americas>