British Army officer rank insignia some time to become familiar with them all. Those in the ranks of Captain, Lieutenant and Second Lieutenant are often referred to as subalterns. Those of Brigadier, Colonel, Lt. Colonel and Major are considered to be of field officers. All above these are considered to be of general officer rank. For a short period, the British Army used the rank of sub-lieutenant, before that was changed to second lieutenant. Before 1767, there were no definite badges for Field Marshals and General officers. In 1767, the British Army issued an order to distinguish Field Marshals (once the rank was established in
United States Army officer rank insignia the gold leaf which the major had been wearing on the shoulder strap. In the same year, the bars on the shoulder straps of the captains and first lieutenants were changed from gold to silver. By 1917 and the time of World War I, the olive drab service uniform had gradually become used more frequently and the blue uniform was worn only on formal dress occasions. As a result, metal insignia was authorized for wear on the service uniform on the shoulder loop and on the collar of the shirt when worn without a jacket. Shortly after the United States