a symbol of Confucian culture). Doubters noted, however, that the quality of Wu's calligraphy markedly declined when his secretary died. Wu liked to appear in photos taken in his office with a portrait of his hero George Washington in the background to reflect the supposed democratic militarism he was attempting to bring to China. Wu was famous for his capacity to absorb vast quantities of alcohol and still keep drinking. When he sent Feng a bottle of brandy, Feng replied by sending him a bottle of water, a message that Wu failed to take in. An intense Chinese nationalist, Wu Peifu refused to enter the foreign concessions in China, a stance that was to cost him his life when he refused to go to the International Settlement or the French Concession in Shanghai for medical treatment. More typical was Marshal Zhang Zuolin, a "graduate of the University of the Green Forest" (i.e., a bandit), an illiterate who had a forceful, ambitious personality that allowed him to rise up from the leader of a bandit gang, be hired by the Japanese to attack the Russians during the Russo-Japanese war of 1904–05 and become the warlord of Manchuria by 1916. He worked openly for the Japanese in ruling Manchuria. Zhang controlled only 3% of China's population but 90% of its heavy industry. The wealth of Manchuria, the support of the Japanese, and Zhang's hard-hitting, swift-moving cavalry made him the most powerful of the warlords. His Japanese patrons insisted that he ensure a stable economic climate to facilitate Japanese investment, making him one of the few warlords who sought to pursue economic growth instead of just plundering. Zhang Zongchang, known as the "Dogmeat General" because of his love for the gambling game of that name, was described as having "the physique of an elephant, the brain of a pig and the temperament of a tiger". Writer Lin Yutang called Zhang "the most colorful, legendary, medieval, and unashamed ruler of modern China". Former Emperor Puyi remembered Zhang as "a universally detested monster" whose ugly, bloated face was "tinged with the livid hue induced by heavy opium smoking". A brutal man, Zhang was notorious for his hobby of smashing in the heads of prisoners with his sword, which he called "smashing melons". He loved to boast about the size of his penis, which became part of his legend. He was widely believed to be the