A recent poll taken in 27 European countries shows that 52% of poll respondents think action -- including military action -- must be taken in order to stop Iran from getting nuclear weapons.

However, only 23% of the respondents favored increasing military spending in order to accomplish this.

In other words, Europeans may favor the use of military force to stop Iran from getting nukes, but they want someone else to do it.

From the Jerusalem Post: (emphasis added)

Over half of Europeans would support a preemptive military strike to prevent Iran from acquiring nuclear weapons, a poll released last week by a London think-tank reports.
...

However, the April 4 survey of more than 17,000 Europeans in March conducted by the French polling firm TNS-Sofres found little support for increasing military expenditures to counter or contain the threat.

In response to the statement, "We must stop countries like Iran from acquiring nuclear weapons, even if that means taking military action", 52 percent of Europeans agreed, 40 percent disagreed and 8 percent stated they were undecided.
...

However, few voters in the EU would be prepared to see cuts in domestic spending to finance higher defense outlays to counter the threat. Only 37 percent of British voters and 23 percent of all EU voters agreed with the statement that, "Our country should spend more on defense and less on other things."

While this poll is completely unsurprising, it should be noted often.