Rear Admiral (Upper Half)
| Rear admiral (lower half) |
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|---|---|
The star, shoulder boards, and sleeve stripes of a US Navy rear admiral (lower half) (Line officer).
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| Country |
 United States
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| Service branch | |
| Abbreviation | RDML or RADM |
| Rank | One-star |
| NATO rank | OF-6 |
| Non-NATO rank | O-7 |
| Next higher rank | Rear admiral |
| Next lower rank | Captain |
| Equivalent ranks |
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| Rear Admiral |
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|---|---|
The star, shoulder boards, and sleeve stripes of a US Navy rear admiral (Line officer).
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Rank flag of a US Navy rear admiral
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| Country |
United States
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| Service branch | |
| Abbreviation | RADM |
| Rank | Two-star |
| NATO rank | OF-7 |
| Non-NATO rank | O-8 |
| Next higher rank | Vice admiral |
| Next lower rank | Rear admiral (lower half) |
| Equivalent ranks | Major general (Uniformed services of the United States) |
Rear admiral in the United States refers to two different ranks of commissioned officers — one-star flag officers and two-star flag officers. By contrast, in most nations, the term "rear admiral" refers to an officer of two-star rank.
Rear admiral (lower half) is a one-star flag officer, with the pay grade of O-7 in the United States Navy, the United States Coast Guard, the United States Public Health Service Commissioned Corps, and the National Oceanic and Atmospheric Administration Commissioned Officer Corps. The abbreviation for personnel from the USN, USCG, and NOAA is RDML, whereas for the USPHS, the rank abbreviation is RADM. Rear admiral (lower half) ranks above captain and below rear admiral. Rear admiral (lower half) is equivalent to the rank of brigadier general in the other uniformed services, and equivalent to the rank of commodore in most other navies. In the United States uniformed services, rear admiral (lower half) replaced the rank of commodore in 1985.
U.S. Navy, U.S. Coast Guard, US PHS, US NOAA Insignia
The star, shoulder boards, and sleeve stripes of a U.S. Coast Guard rear admiral (lower half)
The star, shoulder boards, and sleeve stripes of a U.S. Public Health Service rear admiral (lower half)
The star, shoulder boards, and sleeve stripes of a National Oceanic and Atmospheric Administration rear admiral (lower half)
Rank flag of a U.S. Navy rear admiral (lower half)
Rank flag of a U.S. Coast Guard rear admiral (lower half)
Rear admiral (abbreviated as RADM), also sometimes referred to as rear admiral (upper half), is a two-star flag officer, with the pay grade of O-8 in the United States Navy, the United States Coast Guard, the United States Public Health Service Commissioned Corps, the National Oceanic and Atmospheric Administration Commissioned Officer Corps and the United States Maritime Service. Rear admiral ranks above rear admiral (lower half) and below vice admiral. Rear admiral is equivalent to the rank of major general in the other uniformed services. It is the highest permanent rank during peacetime in the uniformed services. All higher ranks are temporary ranks and linked to their specific commands or office and expire with the expiration of their term of command or office.
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Wikipedia