In his book Culture and the Death of God Terry Eagleton quotes Voltaire being rude about the English. “They give the name of infidel to none but bankrupts,” he said. I guess his point was that the English are cool about religion, hating extremes and being wary of enthusiasm. It also suggests, though, that the English are concerned only with money, and that the greatest blasphemy is to lose it.

But, heard in today's world, it questions our basic values and what, essentially, we consider to be worth living and dying for – or, at least, what we consider worth allowing others to die for.

At the end of August I wrote a letter to the Prime Minister, David Cameron, in which I put a series of questions about British foreign policy in the Middle East and its coherence within a clear strategy for realising a thought-through vision. The letter caused a bit of a media storm when it was published in the Observer newspaper. The PM was – understandably – not pleased.

When I received a long, helpful and detailed response from David Cameron, he addressed some questions more clearly than others; but, it was certainly not a fob-off response. I replied to his letter recently and pressed certain points.

As I said at the time, my purpose in writing the letter was to articulate what I thought to be the focused questions that went to the heart of people's concerns about what was going on particularly (but not exclusively) in Syria and Northern Iraq. What, I asked, is the overarching vision that guides responses to the particular crises that keep exploding? In my response I explained that the reason for allowing the Observer to publish the letter was that too many people were writing to ministers and MPs with serious concerns about the plight of suffering people and simply getting no response – including the Archbishop of York. For weeks. My approach certainly got the debate out into the public and media and placed the question of coherence at the top of the agenda.

Or did it?

Parliament is being recalled on Friday in order to – and I quote the BBC news report I heard on the way to the airport this morning, prior to writing this post on the flight to Berlin – “endorse military attacks on Islamic State”. Not to debate and decide, but to endorse a decision already made.

Now, the morality of this decision will be for another discussion. What concerns me here is the strategic purpose of the decision. What I meant in my question about coherence and (ad hoc) reaction is this: how do we avoid foreign policy commitments that simply respond pragmatically to short-term stimuli whereby yesterday's friend (to whom we supplied arms and money) becomes my enemy and today's enemy becomes my reluctant friend simply because he happens – for now, at least – to be my new enemy's enemy?

Is the planned use of violence part of a coherent long-term plan, or a short-term pragmatic response to an immediate stimulus – which might cause problems down the line which haven't been thought through properly now? Killing terrorists is the easy bit.

One of the problems with our politics is that we don't allow space for doubt. Repeatedly stating that “our policy is clear” does not make that policy clear, any more than me repeatedly saying I am a banana makes me yellow. But, politicians aren't allowed to ask difficult questions publicly because (apparently) we, the electorate, want clarity and certainty. Not always helpful, is it? I, for one, would prefer honesty – and some clarity about what would be gained and lost by any particular policy, without the pretence that every policy has to be 100% clear and certain. And right.

So, what have I learned from recent correspondence? (a) If the overarching vision and strategy are clear and coherent, then I still can't see it. Perhaps that says more about my limited mind than it does about policy. (b) What is very clear, however, is that there is no intention to make any asylum provision for IS refugees beyond what is already open to people wanting to claim asylum in the UK. I suspect this is because the PM (but other leaders are not breaking ranks on this) sees electoral suicide in doing anything that feeds UKIP or associates such provision with toxic immigration contamination. The only way to get around this is for those – particularly Christians – who don't like this to bombard party leaders and MPs with very focused letters that demonstrate that not all voters are xenophobic. (c) Asylum provision should be made, but should not be a tool for encouraging the evacuation of Christians and other minorities from the Middle East where they have been for centuries and where their spiritual, social and cultural contribution must not be lost. The stakes are high.

Incidentally, the two unanswered questions put down in the House of Lords by the Bishop of Coventry regarding asylum were eventually answered on 15 September by Lord Wallace of Saltaire. They read as follows:

“There are no current plans to resettle those displaced from ISIS-controlled areas of Iraq. However, we are proud of the UK's record of offering protection to those genuinely in need, and the Government will of course continue to consider asylum claims, including from Iraqi nationals suffering religious persecution, under the normal rules.”

“The safety and security of the UK are our priority. An essential part of delivering this is knowing who is coming to the UK and carrying out all necessary checks in advance of their arrival. We therefore ensure that the necessary checks are undertaken before those accepted on the Syrian Vulnerable Persons Relocation scheme arrive in the UK. We have also been working with local partners, including local authorities, the police and healthcare sector, to ensure the safeguarding of individuals on the scheme when they arrive in the UK.”

Was Voltaire right in his assessment of the English? Discuss.

(And the reason it has taken me so long to post on this blog is simply that I have been working all hours for weeks – the creation of this new diocese is a little demanding at present – and haven't had the headspace or time to write. And, coincidentally, I am now in Berlin with the Meissen Commission, having spent time today in the Reichstag being hugely impressed with the approach and deep thinking of German political leaders.)

PS. Letters from anonymous people who don't have the courage to put their name and contact details on their communication will be disappointed that all their green ink was spilled in vain. I don't even read anonymous letters – they go straight in the bin.