 In 1600 and 1601 Zamoyski took part in the war against Sweden commanding the Commonwealth forces in Livonia ( Inflanty ) . At the same time he was a vocal opponent of that war on the political scene . In 1600 he recaptured several strongholds from the Swedes and a year later captured Wolmar on 19 December 1601 Fellin on 16 May 1602 , and Bialy Kamien on 30 September 1602 . The rigours of the campaign , however , placed a strain on his health , and he resigned the command . 
