during World War Two" as part of an overall "deprivation" plan. In August 1941, at the request of Adolf-Heinz Beckerle – German Minister Plenipotentiary at Sofia – the War Ministry relinquished control of all Jewish forced labour to the Ministry of Buildings, Roads, and Public Works. Mandatory conscription applied from August 1941: initially men 20–44 were drafted, with the age limit rising to 45 in July 1942 and 50 a year later. Bulgarians replaced Jews in the commands of the Jewish labour units, which were no longer entitled to uniforms. On 29 January 1942, new all-Jewish forced labour battalions were announced; their number was doubled to twenty-four by the end of 1942. Jewish units were separated from the other ethnicities – three quarters of the forced labour battalions were from minorities: Turks, Russians, and residents of the territories occupied by Bulgaria – the rest were drawn from the Bulgarian unemployed. The Jews in forced labour were faced with discriminatory policies which became stricter as time went on; with increasing length of service and decreasing the allowance of food, rest, and days off. On 14 July 1942 a disciplinary unit was established to impose new punitive strictures: deprivation of mattresses or hot food, a "bread-and-water diet", and the barring of visitors for months at time. As the war progressed, and round-ups of Jews began in 1943, Jews made more numerous efforts to escape and punishments became increasingly harsh. In late 1938 and early 1939 Bulgarian police officials and the Interior Ministry were already increasingly opposed to the admittance of Jewish refugees from persecution in Central Europe. In response to a query by British diplomats in Sofia, the Foreign Ministry confirmed the policy that from April 1939, Jews from Germany, Romania, Poland, Italy, and what remained of Czechoslovakia (and later Hungary) would be required to obtain consent from the ministry to secure entry, transit, or passage visas. Nevertheless, at least 430 visas (and probably around 1,000) were issued by Bulgarian diplomats to foreign Jews, of which there were as many as 4,000 in Bulgaria in 1941. On 1 April 1941 the Police Directorate allowed the departure of 302 Jewish refugees, mostly underage, from Central Europe for the express purpose of Bulgaria "freeing itself from the foreign element". The Bulgarian irredentist seizure in 1941 of coveted territory from Greece and Yugoslavia and the formation of the new oblasts of Skopje, Bitola, and Belomora