High Quality Content by WIKIPEDIA articles! William Windsor (known as Billy), a goat in the military, was a lance corporal in the 1st Battalion, the Royal Welsh, an infantry battalion of the British Army. He served as a lance corporal from 2001 until 2009, except for a three-month period in 2006 when he was demoted to fusilier, after inappropriate behaviour during the Queen`s Official Birthday celebrations while deployed on active duty with the battalion on Cyprus. He retired to Whipsnade Zoo in May 2009.