In a survey carried out by the Ministry of Defence after the 2005 General Election, 60% of  a random sample of service personnel said they were registered to vote and 13% did not know whether they were or not.

Of those who were NOT registered, 42% claimed they had not received a form. 25% were "not interested in voting", 23%"did not know how to register" and 15% intended to but did not get round to it.

•  Source: House of Commons Speakers Committee Second Report (2007) - Part 2: What is being done to tackle non-registration?  See para 2.22.