A timely poll from PoliticsHome which finds that two-thirds of the public think defence should be protected from any spending cuts. Here's their graphic with full results:
The question, of course, is whether this kind of public pressure forces any of the main parties to actually shield defence from cuts. With the debt burden as it is, its difficult to see them doing so while also sticking to their current commitments in other areas.
With this in mind, it's worth returning to an Ipsos MORI poll from a couple of weeks ago: it found that found that defence came third (behind overseas aid and benefit payments) in a list of "prime candidates for cuts". As always, one or two polls can't seal a case either way - but it will be fascinating to see whether the tragic events of the past two weeks have caused a permanent change in public opinion on defence spending.