Lieutenant commander is considered a mid-grade officer rank in the United States Navy, the United States Coast Guard, the United States Public Health Service Commissioned Corps, and the National Ocean
A lieutenant commander providing medical care aboard USNS Comfort (T-AH 20); note golden oak leaf insignia.
Lieutenant commander James L. Garard wearing the standard combination cover (without embellishments or "scrambled eggs") as per regulations.
Major (United States)
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In the United States Army, Marine Corps, Air Force and Space Force, major is a field officer above the rank of captain and below the rank of lieutenant colonel. It is equivalent to the rank of lieuten
Lieutenant commander (United States)
…Lieutenant commander ranks above lieutenant and below commander. The rank is also used in the United States Maritime Service. The rank is equivalent to a major in the United States Army, United States Air Force, United States Marine Corps, and United States Space Force. When introducing a lieutenant commander…
Major Roger Donlon, US Army. Note golden oak leaf insignia on shoulder board.
U.S. Army major rank insignia during the 1860s