Friendly Bilateral relations now exist between Nicaragua and the United States. However, in the 19th and 20th centuries, tensions were high and American intervention was frequent. In the 1980s Due to Red Scare paranoia and an attempt to put down socialism in the region, the U.S proceeded to wage an undeclared war against the left-wing Sandinista movement by funding the Contra groups until it was defeated in the election in 1990.