U.S. Army Berlin (USAB) was a command of the United States Army created in December 1961 at the height of the Berlin Wall Crisis. It was created as a separate command from the U.S. Army Europe (USAREUR) which had previously been in command of American troops in Berlin. The shoulder sleeve insignia adopted by USAB was the same as the patch used by the Berlin Brigade - the USAREUR patch with a Berlin tab. Its headquarters was located at the Clay Headquarters Compound on Clayallee.