[3] The Mexican army was ordered by Venustiano Carranza to fire upon any American soldier moving in any direction but north.

However, this story is of doubtful veracity as Villa was badly injured at the time and being pursued by both the American Army and the federal Carrancistas.

General Pershing was furious at this result and asked for permission to attack the Carrancista garrison at Chihuahua.

Pancho Villa survived, and small raids on American soil occurred while the expedition was in Mexico[citation needed].

The simultaneous deterioration of German-American relations while World War I raged made any escalation in Mexico undesirable and so negotiations followed.