Thirty-three years after Appomattox the United States Congress, still dominated by Republicans, resolved that the oppressed and invaded Cuban people “are, and of right ought to be, free and independent.” A further irony is that Captain-General Valeriano “Butcher” Weyler, who instituted the cruel “reconcentrado” policy in Cuba, was a young Spanish attache in Washington observing the War Between the States, and especially, Sherman’s brutal tactics to subjugate Americans.
Bernhard Thuersam, www.Circa1865.com
Cuba Libre Si, Southern Libre No
“When the civil war in Cuba began in 1895 the old methods of resistance were adopted by the insurgents, and although 200,000 Spanish troops were sent to Cuba the revolt was not suppressed. Small bands struck at Spanish detachments, raided from the swamps the plantations of the cane growers, or levied contributions on property owners. They had the sympathy of the poorer men in general, from whom they received supplies or recruits.
To put down this form of resistance demanded more enterprising soldiers than Spain’s. General [Valeriano] Weyler, the Captain-General, undertook to overcome it with a decree of reconcentration. In 1896 he ordered all Cubans living outside of garrison towns to move within such towns or be treated as rebels. The inhabitants, forced to leave their homes, were huddled together in narrow spaces in towns and, provided with little food, many died from malnutrition.
[President William] McKinley, less inclined than [his predecessor Grover] Cleveland to oppose the public [sentiment], took a more earnest attitude with Spain. [On] June 27, 1897 he protested to Madrid against the harsh policy adopted by [General Weyler] and against reconcentration in particular.
Spain replied that the situation was not as bad as represented and that reconcentration was no worse than the devastation in the Civil War by [Northern Generals] Sheridan and Hunter in the Shenandoah Valley and by Sherman in Georgia.
[On] April 11  the President laid before Congress the whole Cuban question . . . Congress took a week to debate and on April 19 adopted resolutions declaring that the right of the people Cuba “are, and of right ought to be, free and independent” and empowering the President to use force to carry these resolutions into effect.”
(Expansion and Reform, 1889-1926, John Spencer Bassett, Kennikat Press, 1971 (original 1926), pp. 71-72; 76)