The conspirators were aware of the sketchy nature of their plan, but they feared that delay would lead to arrests and decimate the command structure; the moment of rebellion was set at 4 AM, August 10, 1932. During the night Barrera, Cavalcanti and Fernandez Perez placed themselves in one of the buildings next to the Ministry of War. Despite the plan, no organized military sub-unit showed up in the very early morning hours in the neighborhood; instead, rather loose groups of some 100 officers and civilians attempted to enter the building using the back entrance at
calle de Prim. They were fired at by the sentries, suffered first losses and started to withdraw. Another, smaller group of equally disorganized rebels entered the nearby
Palacio de Comunicaciones hoping to take command of Guardia Civil stationed there, but some were taken prisoner and the others withdrew. None of the infantry and cavalry regiments supposed to rise did. The only sub-unit which rose to arms was Depósito de Remonta; its company with some 70 soldiers commanded by colonel Martinez de Baños marched out from the barracks towards
Paseo de la Castellana, where they met insurgents withdrawing from earlier failed attempts; the group grew to some 300 men. At that time, colonel
Juan Hernández and captain
Arturo Menéndez, commanding from the ministry building, managed to deploy Guardia Civil and
Guardia de Asalto units on defensive positions around
Plaza de Cibeles before the rebels marched in. The shootout lasted around 30 minutes before loyalist units outflanked the rebels and started to advance from other neighboring streets. At this point the rebels acknowledged defeat; some started to flee, some were wounded and most of them surrendered. Azaña watched the events unfold from the upper floor of the ministry; by 8 AM the coup in Madrid was over. Undetected, Barrera, Cavalcanti and Fernandez Perez left their hideout. As was initially agreed in case of failure, Barrera took a prepared plane to Pamplona. Since the city remained calm he made it to
Biarritz seeking a long-distance aircraft which would take him to Seville, but having failed he returned to Pamplona and flew back to Madrid, where he spent the night. Informed that Sanjurjo had been detained he dismissed the news as false and flew to Seville, due to lack of fuel landing on an improvised airfield. As his pilot managed to get petrol, on August 12 Barrera flew back to Madrid and, disguised, made it to France by way of cars and buses. ==Coup in the provinces==