Mezue nkebi ahịrịokwu na-esonụ: Ọnụ ọgụgụ dị ịrịba ama nke ndị ọrụ afọ ofufo si France (10,000), Nazi Germany na Austria (5,000), na Italy (3,350). Ihe karịrị mmadụ 1000 n'otu n'otu si Soviet Union, United States, United Kingdom, Poland, Yugoslavia, Czechoslovakia, Hungary na Canada. Thälmann Battalion, otu ndị Germany, na Garibaldi Battalion, otu ndị Ịtali, mere ka ndị otu ha dị iche n'oge agha ahụ.
Mgbukpọ nke Madrid. Ndị America lụrụ ọgụ n'otu dị ka XV International Brigade ("Abraham Lincoln Brigade"), ebe ndị Canada sonyeere ndị Mackenzie <unk> Papineau Battalion.