You know why so few UK Muslims join the armed forces is because they are very anti-forces.
Pretty much any person of colour would get snapped up by the police and heavily developed, and due to quotas and trying to appease the PC brigade, it is often at the expense of more qualified people. Though you can't force people to join.
Thankfully, the forces are still a meritocracy though that will change and we'll revert back to lions led by donkeys.