President John Mahama has appointed Rear Admiral Mathew Quashie as Chief of Defence Staff (CDS) of the Ghana Armed Forces. Until his appointment, Rear Admiral Quashie who takes over from Lt. Gen Peter Blay was the Chief Naval Staff. A highly placed source at the Office of the President yesterday said Air Vice Marshall Samso-Ojey retained his position as Chief of Air Staff, with Commodore Geoffrey Mawuli Biekro, former Chief of Staff at the Defence Headquarters, taking over as Chief of Naval Staff. Brigadier-General Richard Opoku-Adusei, former General Officer Commanding the Northern Command of the Ghana Army, will become the Chief of Army Staff. The source said the appointments were in line with the powers conferred on the President, who is also the Commander-In-Chief of the Ghana Armed Forces. The President is expected to swear in the service chiefs later Thursday.