Camoron decommisioned the harriers back in 2010 so the RN currently has no fixed wing aircraft for its carriers. The new full-sized carriers currently being built will not be ready until the end of the decade at the earliest.
"Camoron" has his hands full:
"Afghan President Hamid Karzai and his Pakistani counterpart Asif Ali Zardari held peace talks with British Prime Minister David Cameron on Monday which for the first time featured top spy chiefs."
Trilateral peace talks in Britain to send clear message to the Taliban - Monday, 04 February 2013
http://www.freerepublic.com/focus/f-news/2985095/posts