Cuba has been a one-party communist state led by the Castro brothers since 1959. Currently, Raul Castro leads the country after Fidel Castro stepped down in 2008 due to health issues. Cuba's economy has struggled with periods of depression and reliance on aid from allies like Venezuela. In the 1990s, economic reforms like legalizing foreign investment and the U.S. dollar helped Cuba recover from loss of aid from the former Soviet Union. The U.S. established an embargo on trade with Cuba in 1960 and still aims to transform Cuba's government, causing economic and social issues, though some restrictions have lifted in recent years.