American nations in WW2
Did any nations other than Mexico and Brazil send troops to fight in WW2?
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I assume you are talking about Western Hemisphere nations in this question, so am sending you the following that lists the Pan American Union nations that joined the US in a mutual defense pact against the Axis and a note at the end about combat troops that served in Europe. As you noted, Brazil and Mexico were the major ones who sent combat units.
Thanks very much,
Editor in Chief, Armchair General Magazine
Pan American Union
The members of the Pan American Union, who were all neutral in 1939-41, formed a mutual defence pact at a conference of foreign ministers at Havana, on July 21-July 30, 1940. The "Declaration on Reciprocal Assistance and Cooperation for the Defense of the Nations of the Americas" was part of the Final Act of the Second Meeting of the Ministers of Foreign Affairs of the American Republics at Havana, Cuba, July 30, 1940. There were 21
Brazil (25 August 1942)
Mexico (1 June 1942)
United States of America
From July 1944, a Brazilian Expeditionary Force of 25,000 personnel joined the Allies in the Italian campaign. In 1945, the Mexican Air Force’s Escuadrón 201 was attached to the U.S. Far East Air Force, during the Philippines campaign. The other countries in this group contributed support units, small combat forces, or to lesser degrees.