IFOR first secretary was the Swiss pacifist Pierre Cérésole jailed several times for his peace witness. He established the Service Civil (International Voluntary Service for Peace), initially organizing work camps in areas torn apart by war, with volunteers from former enemy countries. Relief for the victims of war was carried out, and international conferences and meetings spread the work of peace to many other parts of the globe. Immediately after Bilthoven IFOR appointed travelling secretaries such as John Nevin Sayre, André Trocmé, Muriel Lester, Henri Rose and Percy Bartlett. They travelled carrying the Fellowship's messages around Europe, in Scandinavia, Central Europe, Poland, the Baltic States and the Balkans, giving life to several international conferences that took place between the two world wars. The first one gathered 200 delegates from 20 nations (also India, Burma and Ukraine) in Sonntagberg in Austria. Many others followed and, in such a tense historical moment, IFOR members discussed about the necessity of disarmament and of a new role of Churches, asking clergymen to make a strong stand against the idea of "righteous wars". In 1932, the IFOR led a Youth Crusade across Europe in support of the Geneva World Disarmament Conference. Protestants and Catholics from all over converged on Geneva by various routes, reaching over 50,000 people and presenting to the Conference a petition calling for total disarmament among the nations.