Pancho Villas staff asked him to rescind the resignation and attack Zacatecas, which he did. The Division del Norte fought uphill to capture the federal army position. Villas success was absolute and crushed the will of any remaining Huerta supporters, military posts were abandoned, and Huerta fled the country. As Villa was now the supreme military power in Mexico, the US halted arms and supply sales as it no longer served US policy of playing the parties against each other.