The Pacific coast of Nicaragua was settled as a Spanish colony from Panama in the early 16th century. Independence from Spain was declared in 1821 and the country became an independent republic in 1838. Britain occupied the Caribbean Coast in the first half of the 19th century, but gradually ceded control of the region in subsequent decades. Violent opposition to governmental manipulation and corruption spread to all classes by 1978 and resulted in a short-lived civil war that brought the Marxist Sandinista guerrillas led by Daniel ORTEGA Saavedra to power in 1979. Nicaraguan aid to leftist rebels in El Salvador prompted the US to sponsor anti-Sandinista contra guerrillas through much of the 1980s. After losing free and fair elections in 1990, 1996, and 2001, former Sandinista President Daniel ORTEGA was elected president in 2006, 2011, and most recently in 2016. Municipal, regional, and national-level elections since 2008 have been marred by widespread irregularities. Democratic institutions have weakened under the ORTEGA administration as the president has garnered full control over all branches of government, especially after cracking down on a nationwide antigovernment protest movement in 2018.