It is not known for certain how many Chinese fought in the Spanish Civil War. Some sources of the time estimate that about a hundred. Most of them were part of the International Brigades, but some fought in the Republican Army. But the most remarkable thing is the fact itself: that there were Chinese citizens fighting in the Spanish war at a time when in China itself another large-scale war took place against the Japanese invaders who demanded the participation of all Patriotic citizens, including those of the diaspora. From the individual stories that have been investigated it follows that most of them did not come directly from China, but were already settled mainly in Europe and to a lesser extent in the United States and other countries. They were emigrants, workers, doctors, journalists, small traders who came from their own volition, accidentally or sent by their political organization. But who were they and why did they go to Spain to participate in the war?