During Templer's two-year command, "two-thirds of the guerrillas were wiped out and lost over half their strength, the incident rate fell from 500 to less than 100 per month and the civilian and security force casualties from 200 to less than 40." Orthodox historiography suggests that Templer changed the situation in the Emergency and his actions and policies were a major part of British success during his period in command. Revisionist historians have challenged this view and frequently support the ideas of Victor Purcell, a Sinologist who as early as 1954 claimed that Templer merely continued policies begun by his predecessors.