For the next several years he would serve on the hostility-plagued south-eastern border, where he made his home in the city of Illńce. In 1644 under Koniecpolski he took part in the battle of Ochmatów where Commonwealth forces dealt a crushing defeat to Toğay bey's (Tuhaj Bej) Tatars. He served as one of seven pułkowniks in Koniecpolski's army, and once again his cavalry unit charge proved to be a decisive moment of the battle, bringing him much fame. That year he also became a regimentarz in his own light cavalry unit, but he still held the rank of a porucznik of hussars.