Air Chief Marshal Sir Michael Armitage says lifting the ban on homosexuals - expected after a ruling in the European Court of Human Rights - will reduce combat readiness.
The pamphlet published by the Social Affairs Unit also argues against women soldiers.It says the Battle of Britain might have resulted in a different outcome if pilots were mothers with children in RAF creches.
Julian Brazier, a Tory MP, says the ignorance of MPs has allowed "subversive" change to the armed forces to go ahead without challenge.
`Not Fit to Fight - the cultural subversion of the armed forces in Britain and America', Social Affairs Unit, 314-322 Regent Street, London, W1R 5AB. pounds 11.95 plus pounds 1 p&p.Reuse content