In the United States, the rank of lieutenant commander exists in the United States Navy, United States Coast Guard, United States Public Health Service Commissioned Corps, and National Oceanic and …

U.S. Navy Ranks An enlisted member enters the Navy as a Seaman Recruit. After completing basic training, the enlisted recuits advances to Seaman. The next notable advancement is to a …

Lieutenant Commander is the fourth commissioned officer's rank in the U.S. Navy, and is equivalent to the rank of Major in the other Armed Services. Lieutenant Commanders typically serve as mid …

Sep 11, 2025 · Lieutenant Commander (LCDR, O-4) LCDRs often serve as department heads or executive officers on ships, submarines or aviation squadrons.

The meaning of LIEUTENANT COMMANDER is a commissioned officer in the navy or coast guard ranking above a lieutenant and below a commander.

May 13, 2014 · Shortly after 1775 a senior Lieutenant who was "Captain" of a smaller, 10- to 20-gun warship was called a Lieutenant Commanding, sometimes Lieutenant Commandant.

A lieutenant commander is a senior department officer on a large ship/shore installation or commanding officer or executive officer (second-in-command) of a smaller ship/installation.

Explore the rank of Lieutenant Commander, its etymology, duties, and role within the naval hierarchy. Learn how it compares to other ranks and its equivalents in different navies around the world.

Simply "lieutenant" is never used because it is one rank lower. Promotion to lieutenant commander in the U.S. Navy is governed by United States Department of Defense policies derived from the …

Jul 1, 2024 · Becoming a Lieutenant Commander (LCDR) in the US military is a significant milestone, signifying dedication, leadership, and expertise. It’s achieved through a combination of time in …