Detailed Instructions: In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Problem:Context: In June 1943, the head of the British Special Operations Executive mission in Greece, Brigadier Eddie Myers, conceived the Agreement of National Groups. Link Information: From October 1942 to early 1944, brevetted first to Colonel and then to Brigadier, he headed the SOE-controlled British Military Mission to occupied Greece. Question: When die the person who was the the head of the British Special Operations Executive mission in Greece in 1943 first achieve his position?
Solution:
Answer: October 1942