Given the intensity of '
Operation Punishment' and quick collapse of Yugoslav defence, some SOE agents made their own way to Istanbul or the Middle East, while others followed the fleeing Yugoslav government all the way to Montenegrin coast. Their plans to block the Danube and disrupt German oil and grain supplies from Romania by blowing up a large quantity of rock into the Kazan gorge, or sinking cement-laden barges at Greben narrows or the Sip canal mostly failed. In the end, the river was impassable for between three and five weeks without major impact on the enemy. In the confusion of the initial reports, received via agents arriving overland to Istanbul, refugees, and
Yugoslav Government-in-Exile (YGE) sources about the situation in the country, alleged persecutions and massacres, as well as pockets of resistance, British government had arranged for direct missions to the region. They mostly consisted of British SOE agents, W/T operators and Yugoslav army officers and had a similar brief: "to discover what was happening in Yugoslavia and co-ordinate all forces of resistance there". Some of the most prominent missions are listed in table below. Limited resources meant that in 1942 support for the Chetniks was limited to "words rather than deeds". The SOE, charged with fostering resistance movements, initially sent Captain
D. T. Hudson as part of
Operation Bullseye, to contact all resistance groups in September 1941. Hudson's reports on the meetings between Mihailović and Tito (and their staffs) were not encouraging, and he sent warnings that the communist Partisans suspected that Mihailović was collaborating with the government of
Milan Nedić in Serbia. Contacts with both groups were severed by the
first Axis winter offensive, but decrypts of German signals showed that the Chetniks were collaborating with the Italians. This collaboration was based on an old friendship of Serbs and Italians in Dalmatia going back to the times of the Austrian rule. In June 1942 a report by Major General Francis Davidson, Director of Military Intelligence to Churchill, described the Partisans as "extreme elements and brigands". British Military Intelligence wanted to maintain support for Mihailović at the time that they were watching the progress of the German
Operation Weiss against the Partisans, though they started having doubts by March 1943. Colonel Bateman in the Directorate of Military Operations also recommended supporting the "active and vigorous Partisans" rather than the "dormant and sluggish Chetniks." An assessment by Major
David Talbot Rice of
MI3b in September 1943 confirmed that there had only been isolated anti-German activity by Mihailović and "the heroes of the hour are undoubtedly the Partisans". He recommended that Mihailović should be told to destroy German lines of communication in Serbia, otherwise Tito would be the sole recipient of British aid which they were at long last in a position to deliver. The
Signals intelligence had completely changed the view of Talbot Rice and MI3b in six months. When Mihailović was perceived as less effective than the communist Partisans, missions were sent to the Partisans. One of the first of these missions, codenamed "Fungus", was dropped "blind" in the area of Dreznica and Brinje, north west of Senj on the Croatian Adriatic coast, on the night of April 20/21 1943 by a
Liberator of
No. 148 Squadron RAF, operating from
Derna The mission consisted of two Canadian emigrees (Petar Erdeljac and Pavle Pavlic), and Corporal Alexander Simic (Simitch Stevens) of the
Royal Pioneer Corps. They were found by the partizans and taken to the Croatian Partizan HQ at Sisane Polje, where Erdeljac and Pavlic were recognized by Ivan Rukovina, the Commander of the Croatian HQ, who had fought with them in the
International Brigades in Spain. Alexander Simic was interrogated at length by Dr Vladimir Bakaric, the Political Commissaar (who subsequently became President of Croatia) before being allowed to establish radio contact with SOE headquarters in Cairo and arrange the subsequent missions of Major William Jones to join Simic at the Croatian HQ and that of Captain
Bill Deakin to Tito's Headquarters in May 1943. He was joined the following September by Brigadier
Fitzroy Maclean, an
SAS officer and also a
Conservative Member of Parliament and former diplomat, with good language skills. Maclean subsequently sent a "blockbuster report" to Foreign Secretary
Anthony Eden, recommending that Britain should transfer support to Tito and sever links with Mihailović. In 1943 the SOE in England and the Foreign Office wanted to continue support for Mihailović, although as these organisations had only limited access to decrypts they were not so well-informed on the situation there. The SOE headquarters in Cairo (which was frequently at odds with the London headquarters), MI6, the Directorates of Military Intelligence and Operations, the
Chiefs of Staff and ultimately Churchill himself, wanted to switch support to Tito. ==Churchill's sources==