Federals Kill Federals.

New York Times 100 years ago today, November 29, 1912:
In Ousting Mexican Rebels They Fire on Each Other at Night.
    MEXICO CITY, Nov. 28.— The Government troops have dislodged a number of rebels from their positions near Chalco, about thirty miles from the capital, but credit for the exploit is somewhat lessened by the fact that two Federal detachments, the Twenty-ninth and Sixteenth Infantry, had been fighting each other during the latter part of the engagement.
    The sortie against the insurrectos was at night, the Federal commander dividing his force and marching against the rebels from two sides. The fighting was spirited, regardless of the Federals' inability to see the enemy in the darkness.
    An officer of one detachment recognized the bugle calls of the other, and an investigation disclosed the fact that the rebels had disappeared and that bullets were being exchanged between the two sections of the Government forces. At least ten Federals were killed in that part of the encounter.
    Reports of travelers and mail advices indicate that conditions in various parts of the republic are worse than is generally known in the capital, and more widespread. At least ten encounters have taken place the past three days, the Federals reporting victories.