Some of Hart's published claims attracted criticism from other historians and writers, including two incidents in "The IRA and its Enemies". One was the Kilmichael Ambush of 28 November 1920. Hart challenged the account of commander Tom Barry who stated the Auxiliaries engaged in a false surrender that caused two IRA fatalities, after which Barry refused further surrender calls and ordered a fight to the finish without prisoners. Hart posited this never happened and alleged that Barry ordered the killing of all prisoners.