Question: In 1941 when the Axis invaded Yugoslavia, King Peter II formed a Government in exile in London, the main reason for the change was, or as later alleged the influence of James Klugmann in Special Operations Executive (SOE) headquarters in Cairo or even who, he was a journalist and a Conservative Member of Parliament (MP) for Preston from 1940 to 1945?
Sentence (from "Yugoslavia and the Allies"): The main reason for the change was not the reports by Fitzroy Maclean or William Deakin, or as later alleged the influence of James Klugmann in Special Operations Executive (SOE) headquarters in Cairo or even Randolph Churchill, but the evidence of Ultra decrypts from the Government Code and Cipher School in Bletchley Park that Tito's Partisans were a ""much more effective and reliable ally in the war against Germany"".
Relevant evidence: Yes