These are the Five Pillars of Islam, the commandments that every Muslim must obey:

• Declare “There is no God but Allah and Muhammad is his prophet.”
• Pray five times daily at set times.
• Give charity (to Muslims only).
• Fast from dawn to sunset every day in the month of Ramadan.
• Make a pilgrimage to Mecca.

Muslims could live in the West and do all those things without danger to non-Muslims.

But Muslims also have the obligation of jihad – holy war, which could be called a sixth pillar. Every Muslim must actively fight the jihad or support those who actively fight it.

If a Muslim wants to live in the West he should obviously abjure the obligation of jihad.

And then there is sharia, “the infallible law of Allah”. Traditionally it has been inseparable from Islam. It is wholly incompatible with British common law, the US Constitution, and the legal systems of Europe and all other Western countries.

So Muslims who want to live in the West would need to renounce sharia as well as jihad.

Those are the reforms of Islam that are needed if the terrorist war is to end.

If Muslims already living in Western countries could not be persuaded to renounce jihad and sharia, they would have to be coerced.

How can that be done? Terrorize all who carry out or support jihadist terrorism and its aim, the spread of sharia.

David P. Goldman (aka Spengler) writes at the Asian Times:

Yet another criminal known to security services has perpetrated a mass killing, the Tunisian Mohamed Lahouaiej-Bouhlel. Why did the French police allow a foreign national with a criminal record of violence to reside in France? Apart from utter incompetence, the explanation is that he was a snitch for the French authorities. Blackmailing Muslim criminals to inform on prospective terrorists is the principal activity of European counter-terrorism agencies. Every Muslim in Europe knows this.

The terrorists, though, have succeeded in turning the police agents sent to spy on them and forcing them to commit suicide attacks to expiate their sins. This has become depressingly familiar; as Ryan Gallagher reported recently, perpetrators already known to the authorities committed ten of the highest-profile attacks between 2013 and 2015.

The terrorists are adding insult to injury. By deploying police snitches as suicide attackers, terrorists assert their moral superiority and power over western governments. The message may be lost on the western public, whose security agencies and media do their best to obscure it, but it is well understood among the core constituencies of the terrorist groups: the superiority of Islam turns around the depraved criminals whom the western police send to spy on us, and persuades them to become martyrs for the cause of Islam.

These attacks are designed to impress the Muslim public as much as they are intended to horrify the western public. In so many words, the terrorists tell Muslims that western police agencies cannot protect them. If they cooperate with the police they will be found out and punished. The West fears the power of Islam: it evinces such fear by praising Islam as a religion of peace, by squelching dissent in the name of fighting supposed Islamophobia, and by offering concessions and apologies to Muslims. Ordinary Muslims live in fear of the terror networks, which have infiltrated their communities and proven their ability to turn the efforts of western security services against them. They are less likely to inform on prospective terrorists and more likely to aid them by inaction.

The terrorists are winning the intelligence war, because they have shaped the environment in which intelligence is gathered and traded. But that is how intelligence wars always proceed: spies switch sides and tell their stories because they want to be with the winner. ISIS and al-Qaeda look like winners in the eyes of western Muslim populations after humiliating the security services of the West.

As a result, western European Muslims fear the terrorists more than they fear the police. The West will remain vulnerableto mass terror attacks until the balance of fear shifts in the other direction. …

Destroying ISIS, al-Qaeda and other Muslim terror groups is not particularly difficult … It simply requires doing some disgusting things. Western intelligence doesn’t have to infiltrate terror groups, tap phones, mine social media postings and so forth (although these doubtless are worth doing). Muslim communities in the West will inform on the terrorists. They will tell police when someone has packed up and gone to Syria, and when he has returned. They will tell police who is talking about killing westerners, who has a suspicious amount of cash, who is listening to broadcasts from Salafist preachers.

They will tell western security services everything they need to know, provided that western security services ask in the right way. … The West does not have to be particularly clever. It simply needs to understand what kind of war it is fighting. …

The way to win the war is to frighten the larger community of Muslims who passively support terror by action or inaction – frighten them so badly that they will inform on family members. Frightening the larger Muslim population in the West does not require a great deal of effort: a few thousand deportations would do. Western intelligence services do not even have to deport the right people; the wrong people know who they are, and so do many of their neighbors.

The ensuing conversation is an easy one to have. “I understand that your nephew is due for deportation, Hussein, and I believe you when you tell me that he has done nothing wrong. I might be able to help you. But you have to help me. Give me something I can use – and don’t waste my time by making things up, or I swear that I’ll deport you, too. If you don’t have any information, then find out who does.”

This approach to quashing insurgency has worked numerous times in the past. It is not characteristic of peacetime life in western democracies, to be sure. … We prefer to think about winning hearts and minds. Winning the hearts and minds of a people, though, isn’t difficult once they fear you.

Actually, we’re not at all sure that that degree of pressure would be effective. Seems rather too mild to us. Much stronger threats would probably need to be made. But we agree that threats must be made – and carried out.

Islam itself tells us the method of intimidation the West should use. It is an “honor” cult. Muslim men fear humiliation. So humiliate the offenders. The US military guards at Abu Ghraib (punished when they should have been rewarded!) showed the way.