In what came to be known as the "Tidworth Incident", Fuller turned down the command of the Experimental Mechanized Force, which was formed on 27 August 1927. The appointment also carried responsibility for a regular infantry brigade and the garrison of Tidworth Camp on Salisbury Plain. Fuller believed he would be unable to devote himself to the Experimental Mechanized Force and the development of mechanized warfare techniques without extra staff to assist him with the additional extraneous duties, which the War Office refused to allocate.