and faithful friend to me, and immensely kind." Beaverbrook increasingly came into conflict with Ernest Bevin over a number of issues such as whose ministry would be responsible for safety training in aircraft factories, and the two ministers spent much time feuding. Hollis recalled: "Their hostility grew to such an extent that it embarrassed Mr. Churchill, and caused a great deal of unhappiness in the government. It seemed astonishing that, at such a time, two men of such stature and ability should be so eager to score points off each other. I was especially grieved at this because I admired both men very much". Hollis also recalled that Beaverbrook's relations with Churchill would vary dramatically as he stated: "Beaverbrook's friendship with Churchill was of very long standing and to my mind, quite stormy. They would fight and argue every Monday and Tuesday; ;part on Wednesday and Thursday; and then make it up again on Friday and Saturday". Beaverbrook resigned on 30 April 1941 and, after a month as Minister of State, Churchill appointed him to the post of Minister of Supply. Here Beaverbrook clashed with Ernest Bevin who, as Minister of Labour and National Service, refused to let Beaverbrook take over any of his responsibilities. On 10 May 1941, Rudolf Hess made his flight to Scotland to contact the Duke of Hamilton about opening talks for an Anglo-German peace. Instead he was taken into custody by the local police constables. Beaverbrook was sent to interview Hess with orders to find out just what had motivated the deputy führer to fly to Scotland. Hess spoke fluent English and it was in that language that the interview was conducted. Beaverbrook reported to Churchill that Hess was an exceedingly eccentric and strange man who believed that the war between Germany and Britain was a grave mistake. Beaverbrook further stated that the best he could discern for Hess's motives was that he had told him that Germany was going to be invading the Soviet Union in the very near-future and now was the ideal time for the two "Nordic" nations to stop their pointless "fratricidal" war and join forces forces against the Soviet Union, whom Hess insisted was the common enemy of both nations. Early on the morning of 22 June 1941, Hess's predications about the coming invasion of the Soviet Union came true when Operation Barbarossa, the largest invasion in history was launched