cases Jews. The work of these refugees in contributing to the Allied victory was declassified over half a century later. In February 1944, 59.7% of POWs in America were employed. This relatively low percentage was due to problems setting wages that would not compete against those of non-prisoners, to union opposition, as well as concerns about security, sabotage, and escape. Given national manpower shortages, citizens and employers resented the idle prisoners, and efforts were made to decentralize the camps and reduce security enough that more prisoners could work. By the end of May 1944, POW employment was at 72.8%, and by late April 1945 it had risen to 91.3%. The sector that made the most use of POW workers was agriculture. There was more demand than supply of prisoners throughout the war, and 14,000 POW repatriations were delayed in 1946 so prisoners could be used in the spring farming seasons, mostly to thin and block sugar beets in the west. While some in Congress wanted to extend POW labour beyond June 1946, President Truman rejected this, leading to the end of the program. Towards the end of the war in Europe, as large numbers of Axis soldiers surrendered, the US created the designation of Disarmed Enemy Forces (DEF) so as not to treat prisoners as POWs. A lot of these soldiers were kept in open fields in makeshift camps in the Rhine valley (Rheinwiesenlager). Controversy has arisen about how Eisenhower managed these prisoners. (see Other Losses). After the surrender of Germany in May 1945, the POW status of the German prisoners was in many cases maintained, and they were for several years used as public labourers in countries such as the UK and France. Many died when forced to clear minefields in countries such as Norway and France. "By September 1945 it was estimated by the French authorities that two thousand prisoners were being maimed and killed each month in accidents". In 1946, the UK held over 400,000 German POWs, many having been transferred from POW camps in the US and Canada. They were employed as labourers to compensate for the lack of manpower in Britain, as a form of war reparation. A public debate ensued in the U.K. over the treatment of German prisoners of war, with many in Britain comparing the treatment to the POWs to slave labour. In 1947, the Ministry of Agriculture argued against repatriation of