Four short years after the first white settlers arrived in what is now Warren, Moravian missionaries from Bohemia arrived to minister to Native Americans. Their mission was on the western bank of the Housatonic River. Like every other human being they welcomed the Indians as sinners as long as they believed in God and has the Savior in their hearts. From the outset they were viewed as suspicious and when they refused to take the Oath of Allegiance to the King, their missionary activities were terminated in Connecticut at the end of the French and Indian War.