Final answer:
José Martí was concerned about the possibility of American military intervention in Cuba because he believed it would hinder Cuba's independence and sovereignty. He feared that it would replace Spanish colonial rule with American imperialism. Martí wanted Cuba to be free to determine its own destiny without foreign interference.
Step-by-step explanation:
José Martí was very concerned about the possibility of American military intervention in Cuba because he believed that it would prevent Cuba from achieving true independence and sovereignty. Martí saw the potential intervention as a threat to Cuban self-governance and feared that it would lead to the replacement of Spanish colonial rule with American imperialism. He believed that Cuba should be free to determine its own destiny without outside interference.
Martí's concerns were rooted in the history of Spanish oppression in Cuba and the desire for true liberation. He organized support and funds in the United States for the Cuban independence movement and worked to raise awareness of the Cuban cause. Martí's concerns about American intervention were valid, as the United States ultimately became involved in Cuban affairs and imposed the Platt Amendment, which allowed for US interference in Cuban internal affairs.