An officer is a person who holds a position of authority as a member of an armed force or uniformed service.
A British commissioned officer (left) and warrant officer (right) in Afghanistan.
The Royal Navy officer training academy Britannia Royal Naval College at Dartmouth
Newly commissioned U.S. Navy and Marine Corps officers celebrate their new positions by throwing their midshipmen covers into the air as part of the U.S. Naval Academy class of 2005 graduation and commissioning ceremony.
A platoon from the Australian 29th Battalion being addressed by their officer commanding in August 1918
A non-commissioned officer is an enlisted leader, petty officer, or in some cases warrant officer, who does not hold a commission. Non-commissioned officers usually earn their position of authority by
A sergeant of the Coldstream Guards addressing through the ranks during the rehearsal for the Trooping the Colour ceremony.
Sergeant, Royal Artillery, on the esplanade of Edinburgh Castle, firing the one o'clock gun
A First Sergeant with the 55th Signal Company (Combat Camera) gets his soldiers ready for a uniform inspection