As early as May 1937, when
Julián Besteiro of the
Spanish Socialist Workers' Party went to London to represent the Spanish Republic at the coronation of King
George VI, president
Manuel Azaña asked him to inquire if the British government would mediate in the civil war. Besteiro met
Anthony Eden on 11 May 1937, but did not get any positive assurances. With the news of the fall of
Barcelona on 26 January 1939, and Azaña's resignation as president, Besteiro decided to seek peace. Besteiro wanted to dissolve the
Popular Front and replace it with a government that excluded communists, since he thought the policy of the Western democracies towards the civil war was determined by anti-communism rather than appeasement of Hitler and Mussolini. Besteiro contacted Colonel
Segismundo Casado, commander of the
Republican Army of the center to discuss a coup. The
Federación Anarquista Ibérica (FAI, Iberian Anarchist Federation) tried to persuade President Manuel Azaña to dismiss the government of
Juan Negrín at the start of December 1938, before the rebel
Catalonia Offensive. They asked him to form "a Government of Spanish significance, which doesn't have in fact and law, as the present one does, the hallmark of dependence on Russia, composed of men free of responsibility for all the disastrous and irresponsible behaviors which characterize the present Government." The
fall of Catalonia in February 1939 virtually ensured that the rebels would win the war. The Negrín government temporarily took refuge in France, where 400,000 civilian and military refugees had fled. General
José Miaja, who had supreme command of the Republican forces, communicated with Negrin, who was in Toulouse, on 9 February 1939. Miaja wanted permission to negotiate a peace given the extreme weakness of his remaining forces. , whose troops ensured the survival of the council Negrín returned to Spain on 10 February 1939 and met Segismundo Casado two days later. Casado reported that with the loss of Catalonia, production of war material had dropped by 50%. There was an alarming shortage of raw materials. He said that "Under the circumstances we cannot produce the indispensable minimum for continuing the struggle." By contrast, the enemy had "high morale of victory ... In such conditions, the fall of Madrid is inevitable causing enormous loss of lives, which will be sacrificed in vain." Negrin agreed that the situation was extremely grave, but said "circumstances demand that we continue fighting."
Cipriano Mera, commander of the IV Army Corps of the center, was also convinced that the Republicans would be defeated. When President Negrín refused to surrender to
Francisco Franco, Mera decided to support Casado and Besteiro in their coup. On 2 March 1939 the Ministry of Defense decreed a major set of changes to the military command. Miaja was moved from Commander in Chief of Land Forces to the symbolic Inspector General of Air, Sea and Land Forces. Various communists were promoted and assigned to important positions of command, while opponents of communists were moved to insignificant posts. Enemies of Negrín would use the decree as evidence that he was preparing a communist coup. Others deny this and say that it would have been against Stalin's policies at the time. In the event it was the trigger for Casado claimed was a preemptive coup. There had however been months of preparation by Casado before that, including negotiations by Casado with supporters of Franco. On 4 March 1939 there was a meeting in Casado's residence between Casado, Cipriano Mera and his chief of staff Antonio Verardini, and the CNT central zone defense committee leaders Eduardo Val and Manuel Salgado Moreira. They were told that the communists were planning a coup for 6–7 March, so had to act fast. At this meeting they decided on the names of most of the men who would form the Council of National Defense. ==Coup==