UNLIKE most of Parliament, the House of Commons chamber has air conditioning which has been most welcome this week given our packed Parliamentary schedule. We have had important transport statements on Network Rail and Airports, a Scotland Bill to wrestle with, and statements on Greece and Tunisia when we heard, in shock, that the deadly afternoon at Port El Kantaoui represented the biggest terrorist attack on our people since the 7/7 London transport bombings ten years ago.

What makes the Tunisian situation so harrowing is that it came out of a clear blue sky and was targeted at people who had saved hard for a holiday, were relaxing with their families on a beach - and then were involved in carnage just moments later.

On the same day in Kuwait an ISIL-affiliated suicide bomber killed 27 and injured more than 200 in an attack on a mosque; in Syria, ISIL executed 120 people in their homes in Kobane, while in south-eastern France, a man was murdered and two were injured in yet another terrorist attack.

While there is no evidence that these attacks were co-ordinated, they were clearly driven by the same underlying perverted ideology that seeks to disable governments and punish ordinary people for rejecting the murderous, backward beliefs peddled by a disaffected few.

With such a shadowy and barbarous enemy it can seem difficult to see how we can win, but as the Prime Minister made clear this week, just as we stood firm and defeated Nazism and Communism in the last century, we can defeat this ideology now if we take important short and long- term steps.

Most immediately we are giving our police and security services the tools and funding they need to root out this poison by seizing passports, preventing travel, and making sure that surveillance and intervention can apply across all communications channels, including online where ISIL use the latest technology.

Secondly, we are helping to deal with the security threat at source, by using our armed forces. British aircraft are already delivering the second-largest number of airstrikes over Iraq, and our airborne intelligence and surveillance assets are assisting other countries with their operations over Syria. Our aid budget can also work to reduce the ungoverned spaces where terrorists thrive. Third, and perhaps most uncomfortably, we must take on the radical narrative that is poisoning young minds on our shores.

We must be stronger at standing up for our values, and we must be more intolerant of intolerance, taking on anyone whose views condone the extremist narrative or create the conditions for it to flourish.