In public at least, he continued to be sanguine about the progress being made throughout his time in Vietnam, though supportive journalist James Reston thought Westmoreland's characterizing of the conflict as attrition warfare presented his generalship in a misleading light. Westmoreland's critics say his successor, General Creighton Abrams, deliberately switched emphasis away from what Westmoreland dubbed attrition. Revisionists point to Abrams's first big operation being a tactical success that disrupted North Vietnamese build up, but resulted in the Battle of Hamburger Hill, a political disaster that effectively curtailed Abrams's freedom to continue with such operations.