There are none in the current government that I know of, but that doesn’t suprise me with Nu-Labour. Off the top of my head, David Davis, the former Shadow Home Secratary used to be in the SAS, Dr Andrew Murrison is an actual reservist who served some time in Iraq as a Royal Navy Surgeon as a sitting MP, Patrick Mercer MP, is probably the most outspoken MP on military affairs was also a shadow cabinet member until he made a controversial remark about anti-black racism in the army being no worse than having red hair and being called ‘ginger’. And finally, Iain Duncan-Smith, former leader of the Conservative Party was a Guards Officer.
All Tories, but these are just the ones I know about, there are probably quite a few more. Most of the Labour ex-servicemen are likely to be older backbanchers of an ‘Old Labour’ bent though, certainly not in government...
Thank you for your prompt response.