 Complete the following phrase:  Marsham joined the Queens Own West Kent Yeomanry WKY, a Territorial Force cavalry unit, in 1902 as a 2nd lieutet, being promoted to 1st lieutet in 1909. At the start of World War I the WKY mobilised at Canterbury and began training as part of the South Eastern Mounted Brigade. In September 1915 the WKY sailed from Liverpool to take part in the 