Not all of the Commonwealth attacks were successful. An early attack, led by Hetman Jan Karol Chodkiewicz with 2,000 men, ended in defeat when the unpaid Commonwealth army mutinied and compelled their leader to retreat through the heart of Russia and back to Smolensk. Not until Crown Prince Władysław, arrived with tardy reinforcements did the war assume a different character. In the meantime, Lisowczycy took and plundered Pskov in 1610 and clashed with the Swedes operating in Russia during the Ingrian War.