Could be the fact they positively encourage a bit of bum action:
ARMY PARTICIPATION IN EUROPRIDE â SAT 1 JUL 06 â WEARING OF UNIFORM
a. EuroPride, a major gay/lesbian festival, will take place in London over the period 16 Jun to
2 Jul 06. On Sat 1 Jul there will be a march/parade through the West End of London followed by a rally in Trafalgar Square. You may be aware that there has been some discussion about Service personnel participation in the parade and rally, in particular whether they should wear uniform or not. The RN have decided that their people may march in uniform during the parade (but attend the rally in civilian clothes); the RAF are likely to prevent theirs attending either in uniform. This note clarifies the Armyâs position.
b. While the Army fully supports the event, and will have a recruiting stand in the EuroPride Village on 1 Jul, its policy is that those who wish to take part in either the parade or the rally are to do so in civilian clothes.
My God, imagine being "The only straight in the Sub"
Dunno about the Navy being gay but you have to wonder at the reasons behind a grown man volunteering to spend six months at a time in a locked metal can with no other company other than a load of other sweaty grown men and only enough beds to accomodate half of them at any one time