U.S. Chairman of the Joint Chief of Staff.

Flag of General Lemnitzer, Chairman of the Joint Chief of Staff 1960-1962.
The Secretary of Defense approved the flag of the Joint Chief of Staff in 1949. The field's diagonal halving comes from the flag of the Chief of Staff of the Army. The colors and the center come from the flag of the Secretary of Defense. The Chairman is the senior officer in the United States military; the principal military adviser to the President, Congress, and the Secretary of Defense. The Secretary's orders to the operating forces are passed through the Chairman of the Joint Chiefs of Staff.

Because the National Security Act of 1947 disallows the Chairman to command forces directly and only an officer "eligible for command at sea" is entitled to fly his flag from Naval vessel, in the 1950s a Navy Judge Advocate General ruled that the Chairman's flag cannot be displayed aboard a ship of the Navy, even if the Chairman were an admiral in the Navy.

Today, the national ensign rather than a personal flag is flown during honors to the Chairman during an official visit to a ship. The Chairman's flag is flown over Navy shore facilities and the Chairman may also fly his colors in the bow of craft there should be no objection to flying it in from the bow a craft carrying the Chairman. For parade and indoor usage, the Chairman's flag is trimmed with golden yellow-fringed cord, tassels and fixed to a staff with a spearhead finial. A flagstaff topped with a spread eagle would served the Chairman on boats as well.

ZFC Significant Flag

Sources:

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Positional Colors for the Joint Chiefs of Staff, The Institute of Heraldry, 13 November 2011, from:
http://www.tioh.hqda.pentagon.mil/UniformedServices/Flags/Pos_Colors_Jt_Chief.aspx

Chairman of the Joint Chiefs of Staff, Sea Flags, 1 October 2011, from: http://mysite.verizon.net/vzeohzt4/Seaflags/personal/jcs.html

Chairman of the Joint Chiefs of Staff (CJCS), Wikipedia, 13 November 2011, from:
http://en.wikipedia.org/wiki/Chairman_of_the_Joint_Chiefs_of_Staff

Army Regulation 840-10, Heraldic Activities Flags, Guidons, Streamers, Tabards, and Automobile and Aircraft Plates, Washington, DC, Headquarters Department of the Army, 1998

POSITIONAL COLORS, US DEPARTMENT OF DEFENSE,, War Flags Through the Ages & Around the World, 13 November 2011, from: http://tmg110.tripod.com/usarmyr.htm

Lyman Louis Lemnitzer, Wikipedia, 13 November 2011, from: http://en.wikipedia.org/wiki/Lyman_Lemnitzer

Lyman Louis Lemnitzer , ARLINGTON NATIONAL CEMETERY WEBSITE, 13 November 2011, from:http://www.arlingtoncemetery.net/lemnitz.htm

Image Credits:
Zaricor Flag Collection

Hoist & Fly
Width of Hoist	52
Length of Fly	64

Stars
Comments on Star Measurements	Diagional two in lower hoist; two in upper fly

Stripes
Size of Hoist	2

Frame
Is it framed?	no

Stars
Number of Stars	4
How are the stars embeded?	Embroidered
Are there stars on obverse?	yes
Are there stars on reverse?	yes

Stripes
Has a Blood Stripe?	no

Crest/Emblem
Description of Crest/Emblem	DOD eagle

Nationality
Nation Represented	United States

Fabric
Fabric	Bemberg
Comments on Fabric	Rayon

Attachment
Method of Attachment	Pole Hem & Tabs

Applica
Applique Sides	Single Faced = Mirror Image Reverse

Documentation
Documents	All original documents and drawings are held in the Zaricor Flag Collection Archives.
Drawings	All original documents and drawings are held in the Zaricor Flag Collection Archives.

Condition
Condition	Good
Damage	Used
Displayable	yes

Date
Date	1960-1962