Crossfire

As anticipated by the Tenth Doctor, the vast majority of the Dalek Fleet surrounding Gallifrey at the end of the Last Great Time War destroyed themselves in their own crossfire when the planet disappeared. (TV: The Day of the Doctor)

The planet Xeriphas was devastated in the crossfire of the Vardon-Kosnax War. (TV: Time-Flight)

During the Shoreditch Incident of 1963, the Seventh Doctor was occupied stopping Group Captain Ian Gilmore and the Intrusion Counter-Measures Group getting "diced" in the crossfire of the Imperial-Renegade Dalek Civil War. (TV: Remembrance of the Daleks)