 Plagis converted to Mustang IIIs along with the rest of his squadron at RAF Bentwaters in Suffolk during December 1944 and January 1945 , and spent the rest of the war flying bomber escort missions at the head of Bentwaters Wing , which included No. 126 Squadron . He was promoted to squadron leader on 28 March 1945 . Germany surrendered on 7 May , ending the war in Europe . 
