So far as I know. Basically the RN and RAF could compensate for the Army and successfully defend the United Kingdom against threats from the air, ground and sea.
Tell you what Henry, in five years when things have dropped and voices deepened, you come back and tell me the same thing. I'll hand you a rifle and ask you to single handedly clear Musa Qala or the contemporary eqivolent.
You are no doubt well meaning, but hopelessly naive. I'd stick to youtube or facebook if I was you.
Good luck for the future.