ocr: Nicaraguan politics are caught in a vise between right- wing pro-US parties and the left-wing Sandinistas, whose power base remains the army. Radical changes were expected after the 1990 electoral victory of Violeta Chamorro's UNO.However, her tailure to revive the economy, and - increasing reliance on Sandinista support,ledto - US threats to withhold aid. By1993, the instability ofthe goverment was threatening a return to civil war.
