HAVANA – Former President Fidel Castro, who led a rebel army to improbable victory in Cuba, embraced Soviet-style communism and defied the power of 10 U.S. presidents during his half century rule, has died at age 90.

With a shaking voice, President Raul Castro said on state television that his older brother died at 10:29 p.m. Friday. He ended the announcement by shouting the revolutionary slogan: “Toward victory, always!”

Castro’s reign over the island-nation 90 miles (145 kilometers) from Florida was marked by the U.S.-backed Bay of Pigs invasion in 1961 and the Cuban Missile Crisis a year later that brought the world to the brink of nuclear war. The bearded revolutionary, who survived a crippling U.S. trade embargo as well as dozens, possibly hundreds, of assassination plots, died 10 years after ill health forced him to hand power over to Raul.

Castro overcame imprisonment at the hands of dictator Fulgencio Batista, exile in Mexico and a disastrous start to his rebellion before triumphantly riding into Havana in January 1959 to become, at age 32, the youngest leader in Latin America. For decades, he served as an inspiration and source of support to revolutionaries from Latin America to Africa.

His commitment to socialism was unwavering, though his power finally began to fade in mid-2006 when a gastrointestinal ailment forced him to hand over the presidency to Raul in 2008, provisionally at first and then permanently. His defiant image lingered long after he gave up his trademark Cohiba cigars for health reasons and his tall frame grew stooped.