HAVANA, June 5, 2016 (Xinhua) -- Cuba's President Raul Castro (Front) takes part in the 7th Summit of the Association of Caribbean States (ACS) in Havana, Cuba, on June 4, 2016. The 7th summit of the ACS concluded on Saturday with the approval of the Havana declaration, which touches on political issues, such as the U.S. blockade on Cuba and the Venezuelan crisis. The bloc also approved a joint action plan for the next two years, which will increase economic and commercial cooperation among the member nations. (Xinhua/Ismael Francisco/Cubadebate)