One Hundred Years Ago:
General of the Armies John Joseph "Black Jack" Pershing was a senior United States Army officer. His most famous post was when he served as the commander of the American Expeditionary Forces on the Western Front in World War I, 1917–18.
Today: POTUS declares National Emergency along Southern Border.
Pancho Villa: As commander of the División del Norte.
El Paso: The full name is “El Paso del Norte” or “The Northern Pass.” At El Paso, the Rio Grande's upstream path turns nearly due north.