Fidel Castro has been absent from the public eye since Cuba and the U.S. began repairing their relations. Now, he is finally giving some comments on the recent developments, USA Today reports.

Castro said his brother and current Cuban President Raul Castro have every right to make the agreement with the U.S. to lift the trade embargo, according to CNBC. Still, Castro remains suspicious and has always blamed the U.S. for Cuba's economic problems.

Castro said any agreement should be welcomed by all and shared some positive comments about the situation.

"I don't trust the policy of the United States, nor have I exchanged a word with them, but this does not mean I reject a pacific solution to the conflicts," he wrote in a letter to a student federation at the University of Havana. It was also published in Spanish in the Communist Party newspaper Granma. "We will always defend cooperation and friendship with all the people of the world, including with our political adversaries."

Castro has not been heard from in a long time. Many spread rumors that he was dead.

The former Cuban president was Cuba's leader from 1976-2008 and is currently 88 years old.

In his letter, Castro explained some of the events that went on during his presidency, such as his sending of 20,000 troops to defend Angola in the 1970s. He described income inequality throughout the world in the letter while praising the ideas of Communist leaders. The letter was meant to mark his 70th anniversary of enrollment at the University.

Ending the letter, Castro called for an agreement that would improve the condition of "human dignity" throughout the world.

"The serious dangers that threaten humanity today should give way to rules that are consistent with human dignity," he said. "No country is excluded from such rights. I have fought with that spirit and will continue fighting until my last breathe [sic]."

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