Sun Tzu Võ Nguyên Giáp, the strategist behind victories over French and American forces in Vietnam, was likewise an avid student and practitioner of Sun Tzu's ideas. America's Asian conflicts against Japan, North Korea, and North Vietnam brought Sun Tzu to the attention of American military leaders. The Department of the Army in the United States, through its Command and General Staff College, has directed all units to maintain libraries within their respective headquarters for the continuing education of personnel in the art of war. "The Art of War" is mentioned as an example of works to be maintained at each facility,
What Is Art? to justify their own tastes. Jahn notes the "often confusing use of categorisation" and the lack of definition of the key concept of emotion. Bayley writes that "the effectiveness of "What is Art?" lies not so much in its positive assertions as in its rejection of much that was taken for granted in the aesthetic theories of the time". Noyes criticises Tolstoy's dismissal of beauty, but states that, "despite its shortcomings", "What is Art?" "may be pronounced the most stimulating critical work of our time". Simmons mentions the "occasional brilliant passages" along with the "repetition, awkward language, and loose terminology".