The Illustrated War News (London) (Oct. 3, 1917):

"Their barrage might be falling...short of the required distance....perhaps endangering [their comrades] with friendly fire."

Coconino Sun (Flagstaff, Ariz.) (Sept. 20, 1918):

"I must not forget the first time I came in proximity with artillery fire. This was friendly fire."

N.Y. Times (Oct. 11, 1918):

"A machine gun barrage laid down on the enemy emplacements was friendly fire from a unit ... acting without orders to cover their advance."


Ibid. (Apr. 3, 1944):

"Admiral Nimitz disclosed that thirteen Americans had been killed and forty-six wounded by friendly fire in another ‘tragic episode’ of the war."