“The much-publicized disunity on the Government side was not a main cause of defeat.”

§ 6
"Looking Back on the Spanish War" (1943)
Context: The outcome of the Spanish war was settled in London, Paris, Rome, Berlin — at any rate not in Spain. After the summer of 1937 those with eyes in their heads realized that the Government could not win the war unless there were some profound change in the international set-up, and in deciding to fight on Negrin and the others may have been partly influenced by the expectation that the world war which actually broke out in 1939 was coming in 1938. The much-publicized disunity on the Government side was not a main cause of defeat. The Government militias were hurriedly raised, ill-armed and unimaginative in their military outlook, but they would have been the same if complete political agreement had existed from the start. At the outbreak of war the average Spanish factory-worker did not even know how to fire a rifle (there had never been universal conscription in Spain), and the traditional pacifism of the Left was a great handicap. The thousands of foreigners who served in Spain made good infantry, but there were very few experts of any kind among them. The Trotskyist thesis that the war could have been won if the revolution had not been sabotaged was probably false. To nationalize factories, demolish churches, and issue revolutionary manifestoes would not have made the armies more efficient. The Fascists won because they were the stronger; they had modern arms and the others hadn't. No political strategy could offset that.
The most baffling thing in the Spanish war was the behaviour of the great powers. The war was actually won for Franco by the Germans and Italians, whose motives were obvious enough. The motives of France and Britain are less easy to understand. In 1936 it was clear to everyone that if Britain would only help the Spanish Government, even to the extent of a few million pounds’ worth of arms, Franco would collapse and German strategy would be severely dislocated. By that time one did not need to be a clairvoyant to foresee that war between Britain and Germany was coming; one could even foretell within a year or two when it would come. Yet in the most mean, cowardly, hypocritical way the British ruling class did all they could to hand Spain over to Franco and the Nazis. Why? Because they were pro-Fascist, was the obvious answer. Undoubtedly they were, and yet when it came to the final showdown they chose to stand up to Germany. It is still very uncertain what plan they acted on in backing Franco, and they may have had no clear plan at all. Whether the British ruling class are wicked or merely stupid is one of the most difficult questions of our time, and at certain moments a very important question.