The 2016 War of Agua Prieta, also referred to as the Douglas War, was a border dispute between the United States and Mexico that resulted in armed conflict from both sides. Even though war was never officially declared between the two nations, the intense battles and great casualties gave it a landmark position in the history of the United States and Mexico.
The war began when the Mexican border town of Agua Prieta petitioned for a referendum to seceded to the United States. President Enrique Peña Nieto, concerned that the success of the secession would result in other border towns holding referendums, sent two Mexican Army regiments of 65 to Agau Prieta to cancel the petition on September 4, 2016. The city was in outrage and 2 major riots broke out, killing 12 total. The United States, acknowledging the oppressive nature of Enrique Peña Nieto, sent 15 United States Army brigades to the United States town of Douglas across the border from Agua Prieta.
The United States demanded that the Mexican Government allow the petition and take the Mexican Army regiments out of Agua Prieta. President Enrique Peña Nieto denied the United State's request. Soon after on September 18, United States President Barack Obama ordered and occupation of Agua Prieta until the request is supplied. The Mexican Army fought back the United States intrusion and armed conflict between the two was initiated.
The armed conflict resulted in 643? dead and 9,745 injured with the town of Agua Prieta claimed by Mexico and the United States.