TOPSHOT - Opposition activists (L) and supporters (R) of Venenzuelan President Nicolas Maduro scuffle during a march in Caracas, on September 1, 2016. 
Venezuela's opposition and government head into a crucial test of strength Thursday with massive marches for and against a referendum to recall President Nicolas Maduro that have raised fears of a violent confrontation. / AFP / FEDERICO PARRA        (Photo credit should read FEDERICO PARRA/AFP/Getty Images)