What was Cuba's involvement in the ww2?

Because of Cuba's geographical position at the entrance of the Gulf of Mexico, Havana's role as the principal trading port in the West Indies, and the country's natural resources, Cuba was an important participant in the American Theater of World War II, and it was one of the greatest beneficiaries of the United States.

Explanation:

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Before Fidel Castro's coup in 1959, however, the United States and Cuba were close allies, dating back to the Spanish-American War. During World War II, Cuba was one of the United States' most dedicated allies as well. Cuba was the first Caribbean nation to declare war on the Axis powers, in December 1941.

Explanation:

united states reinforcements contributed greatly to three allied victories in france at: cantigny (first major american battle), argonne (the largest in the united states military history, involving 1.2 million american soldiers), and château-thierry (one of the first actions under general pershing).

i see, would you mind putting it as one?