In July 1854, a major rebellion broke out bringing together a wide coalition of outrages against the state. The Crimean War, which had broken out in March of that year, had led to an increase in grain prices across Europe and a famine in Galicia. Riots against the power loom erupted in the cities, and "progresistas" outraged at a decade of "moderado" dictatorship and the corruption of the Sartorius government broke out in revolution. General Leopoldo O'Donnell took the lead in the revolution; after the indecisive Battle of Vicálvaro, he issued the Manifesto of Manzanares that pronounced himself in favor of Spain's former "progresista" dictator, Baldomero Espartero, the man that O'Donnell had actively rebelled against in 1841. The "moderado" government collapsed before them and Espartero returned to politics at the head of an army.