In a rare public address, Alex Younger will outline how cooperation with European allies has prevented multiple attacks in the UK and the continent by Isis and other terrorist groups.

…Speaking at St Andrews University in Scotland, he will reiterate that: “Russia or any other state intent on subverting our way of life not to underestimate our determination and our capabilities, or those of our allies.”

Security cooperation with Europe is ‘imperative’, MI6 chief to warn as no-deal Brexit threat grows | The Independent

hmmmm