In 1700, Charles XII had a standing army of 77,000 men . By 1707 this number had swollen to at least 120,000 despite casualties. Russia was able to mobilize a larger army but could not put all of it into action simultaneously. The Russian mobilization system was ineffective and the expanding nation needed to be defended in many locations. A grand mobilization covering Russia's vast territories would have been unrealistic. Peter I tried to raise his army's morale to Swedish levels. Denmark contributed 20,000 men in their invasion of Holstein-Gottorp and more on other fronts. Poland and Saxony together could mobilize at least 100,000 men.

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How many more men were with Poland and Saxony than with Denmark?