Portuguese Cape Verde cocoa plantations of Portuguese São Tomé and Príncipe. In the lead-up to and during the Portuguese Colonial War, those planning and fighting in the armed conflict in Portuguese Guinea often linked the goal of liberation of Guinea-Bissau to the goal of liberation in Cape Verde. For instance, in 1956, Amílcar and Luís Cabral founded the African Party for the Independence of Guinea and Cape Verde (PAIGC). However, there was no armed conflict in Cape Verde, and ultimately independence for Cape Verde resulted from negotiation with Portugal after the April 1974 Carnation Revolution. In August 1974, an agreement was signed in
Cape Verde–United States relations (Prime Minister Neves also visited the U.S. in September 2007.) The United States provided emergency humanitarian aid and economic assistance to Cape Verde in the period immediately following Cape Verde's independence, as well as after natural disasters, including a hurricane that struck the island of Brava in 1982, and after a severe volcanic eruption on Fogo in 1995. Cape Verde also is eligible for trade benefits under the African Growth and Opportunity Act (AGOA), and has signed an Open Skies agreement to facilitate air travel safety and expansion. On July 4, 2005, Cape Verde became the third country to sign