Britain should join Syria air strikes, Cameron tells MPs

Russian protesters demonstrate outside the Turkish embassy in Moscow

Britain should join air strikes against the Islamic State group in Syria and should not "sub-contract" its security to allies, Prime Minister David Cameron said on Thursday in a written statement to MPs.

"I believe that we should now take the decision to extend British air strikes against ISIL into Syria," he said, adding: "It is wrong for the United Kingdom to sub-contract its security to other countries".