Brian,
From the 100th ID website (
www.100thww2.org) this item under 898th AA Arty Bn (Automatic Weapons):
"Neither the 898th nor the 100th had seen their last aerial “friendly fire” incidents, however. On 22 January and again a week later, Century Division positions around Petit-Réderching, Bining, Enchenberg, and Montbronn were subjected to strafing and even bombing attacks by P-47s and P-51s; Battery D was awarded official credit for shooting down one of a flight of four Mustangs which attacked 397th Infantry positions around Petit-Réderching on 29 January!"
Mentioned village is near Bitche, NE France
The division had been mistakenly under attack by USAAF fighters on several occasions earlier in the month (Jan 45) as well, especially during the first days of Operation Northwind (Vosges).
Regards,
Leendert