million Chinese dollars on a silver reserve of 1.5 million Chinese dollars during the same year. The illiterate Marshal Zhang Zuolin, who engaged in reckless printing of Chinese dollars, did not understand it was him who was causing the inflation in Manchuria, and his remedy was simply to summon the leading merchants of Mukden, accuse them of greed because they were always raising their prices, had five of them selected at random publicly shot and told the rest to behave better. Despite their constant need for money, the warlords lived in luxury. Marshal Zhang owned the world's biggest pearl, while Gen. Wu owned the world's biggest diamond. Marshal Zhang, the "Old Marshal", lived in a lavish palace in Mukden with his five wives, old Confucian texts and a cellar full of fine French wines, and needed 70 cooks in his kitchen to make enough food for him, his wives and his guests. Gen. Zhang, the "Dogmeat General", ate his meals off a 40-piece Belgian dinner service, and an American journalist described dinner with him: "He gave a dinner for me where sinful quantities of costly foods were served in a starving country. There was French champagne and sound brandy". Equipment The warlords bought machine guns and artillery from abroad, but their uneducated and illiterate soldiers could not operate or service them. A British mercenary complained in 1923 that Wu Peifu had about 45 European artillery pieces that were inoperable because they had not been properly maintained. At the Battle of Urga, the army of Gen. Xu Shuzheng, which had seized Outer Mongolia, was attacked by a Russian-Mongol army under the command of Gen. Baron Roman von Ungern-Sternberg. The Chinese might have stopped Ungern had they been capable of firing their machine guns properly, to adjust for the inevitable upward jerk caused by the firing; they did not, and this caused the bullets to overshoot their targets. The inability to use their machine guns properly proved costly: after taking Urga in February 1921, Ungern had his Cossacks and Mongol cavalry hunt down the remnants of Xu's troops as they attempted to flee south on the road back to China. Other forces Because their soldiers were not able to use or take proper care of modern weapons, the warlords often hired foreign mercenaries, who were effective but always open to other offers. Russian émigrés who fled to China after the victory of