Why did many Mexican revolutionary leaders oppose the U.S. occupation of Veracruz?

During the Mexican Revolution, most Mexican revolutionary leaders opposed the United States occupation of Veracruz because they viewed the U.S. military action as an unacceptable external intervention in Mexico's internal national struggle.1

Even though the occupation was directed at their common enemy, the regime of General Victoriano Huerta, leaders such as Venustiano Carranza denounced the seizure of the port. As an ardent nationalist, Carranza rejected the U.S. presence as a violation of Mexican sovereignty, despite the tactical benefit of the U.S. embargo and pressure against Huerta. This sentiment was shared by the majority of revolutionary factions, who sought to resolve the conflict without foreign military interference.231