 Complete the following phrase:  In April 1941, Poole was promoted to the temporary rank of brigadier. In June, he was transferred back to the 1st Division as brigadier to take command of the 2nd Infantry Brigade in Egypt. He saw active service with the brigade at Mersa Matruh, commanding Braforce under the 2nd Division on the Egyptian frontier later in 1941, and then with the 1st Division on the 