War Chief was a title used by a renegade Time Lord who assisted the War Lords. (TV: The War Games [+]Terrance Dicks and Malcolm Hulke, Doctor Who season 6 (BBC1, 1969).)
Shalka Prime identified as War Chief of the Shalka Confederacy. (WC: Scream of the Shalka [+]Paul Cornell, BBCi animations (2003).)