On 12 March 1945, ICRC president Jacob Burckhardt received a message from SS General Ernst Kaltenbrunner allowing ICRC delegates to visit the concentration camps. This agreement was bound by the condition that these delegates would have to stay in the camps until the end of the war. Ten delegates, among them Louis Haefliger (Mauthausen-Gusen), Paul Dunant (Theresienstadt) and Victor Maurer (Dachau), accepted the assignment and visited the camps. Louis Haefliger prevented the forceful eviction or blasting of Mauthausen-Gusen by alerting American troops.