Lets axe the GR4 and Harrier early,
A lower risk option would be to put the Harrier back in Afghanistan from where it should never have been removed, and axe the GR4 force. That way we will not compromise Typhoon and also be ready for JSF. We must not forget that the Harrier force was only reduced in size to try and get the RN out of the force - with Stirrup now compromised, and Torpy and Anderson out of play, sense should prevail.